Nautilus Under Sea, from the renowned Nautilus fleet of Mexico liveaboards, is a 32m steel-hulled motor yacht cruising some of the best sites of Mexico’s Pacific coast.
Although not a huge boat, there is plenty of space on board for the maximum of 18 guests. The main socializing area is the comfortable air-conditioned saloon/dining area on the main deck. There is also a shaded ‘al fresco’ lounge on the sun deck where you can chill on comfortable furnishings and enjoy the fresh air. The sun deck also features a hot tub, and several sun loungers where you can stretch out and work on your tan.
There is a variety of cabins on board ranging from compact triple share stateroom to a sumptuous upper deck Premium suite, when only the best will do! There is even a Superior cabin which is ADA compatible, so divers with physical challenges can be more comfortable.
Comms features include wi-fi internet and satellite phone, so if you are far at sea around Socorro or Guadalupe you can still stay connected. On the diving side, you will appreciate the spacious and well-organized dive deck, individual storage spaces and large camera table with hoses. There is also nitrox available on board, as well as 15 liter tanks, and Nautilus Under Sea is re-breather friendly.
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Itineraries...
Socorro Islands (9 Days / 8 Nights - 19 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: San Benedicto, Roca Partida, Socorro Island
Day 1-2
You should drop into the Nautilus dive center in Cabo San Lucas when they arrive in town to make sure you are all set for the cruise. For boarding you meet at the center in preparation for embarkation in the evening. If you arrive very early on departure day, you can deposit your bags at our recommended hotel, have a look around the town and have dinner before boarding. The boat departs at about 21:00 hrs and only snacks will be served on the first evening. As the boat steams toward San Benedicto the crew will present a safety and dive briefing. The boat arrives on the evening of day 2 so there is no diving on that day. You can while away the time getting to know your fellow guests over breakfast, lunch, dinner and snacks on day 2.
Days 3-8
You will do 4 dives on each full diving day. Highlights include a hammerhead cleaning station near San Benedicto, plus oceanic mantas and dolphins around Socorro, also knows for humpback encounters from January to April. The pelagic encounters you can expect around the isolated underwater volcano Roca Partida include Galapagos sharks, white tips, silvertips, silky sharks, hammerheads, and many manta rays. Silky sharks could also appear during this cruise.
Meals include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
On the second last day the boat begins making its way back to the mainland. So there is no diving on this transition day.
Day 9
You can expect to return back to port in Cabo San Lucas at around 08:30 hrs. The operator will help you organize your taxi back to your hotel or the airport after your final breakfast on board.
Socorro Islands (11 Days / 10 Nights - 25 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: San Benedicto, Roca Partida, Socorro Island.
Day 1-2
You should drop into the Nautilus dive center in Cabo San Lucas when they arrive in town to make sure you are all set for the cruise. For boarding you meet at the center in preparation for embarkation at 20:00 hrs. If you arrive very early on departure day, you can deposit your bags at our recommended hotel, have a look around the town and have dinner before boarding. The boat departs at about 21:00 hrs and only snacks will be served on the first evening. As the boat steams toward San Benedicto the crew will present a safety and dive briefing. The boat arrives on the evening of day 2 so there is no diving on that day. You can while away the time getting to know your fellow guests over breakfast, lunch, dinner and snacks on day 2.
Days 3-8
You will do 4 dives on each full diving day. Highlights include a hammerhead cleaning station near San Benedicto, plus oceanic mantas and dolphins around Socorro, also knows for humpback encounters from January to April. The pelagic encounters you can expect around the isolated underwater volcano Roca Partida include Galapagos sharks, white tips, silvertips, silky sharks, hammerheads, and many manta rays. Silky sharks could also appear during this cruise.
Meals include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
On the second last day the boat begins making its way back to the mainland. So there is no diving on this transition day.
Day 9
You can expect to return back to port in Cabo San Lucas at around 08:30 hrs. The operator will help you organize your taxi back to your hotel or the airport after your final breakfast on board.
Sea of Cortez South (6 Days / 5 Nights - 16 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, seals/sea lions, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: Cerralvo Island, Las Animas, La Reina, El Bajo, Espiritu Santo, Los Islotes, Salvatierra wreck, Fang Ming, San Jose. Kayaking. paddle boarding. swimming, hike into the hills, whatever you want. Backscatter Imaging workshop at SeeCreatures.
Day 1
You should drop into the Nautilus dive center in Cabo San Lucas when you arrive in town to make sure you are all set for the cruise. We encourage you to take advantage of our complimentary Backscatter Imaging workshop when you check in. Cocktail hour starts as soon as you board early evening. And as soon as we have completed provisioning, cleaning and any last minute engineering, we will soon be underway for a lovely dinner on our way to the Sea of Cortez.
Days 2-5
The safari will include 4 dives per day, combining the very best of the southern Sea of Cortez. The sea is a diver’s paradise, and with its unique ecosystem and the overall natural beauty, it has earned UNESCO World Heritage Site status. Mid-May to July is a very special time with large aggregations of mobula rays. And when there are lots of mobulas, there are orcas!! There is a good probability that guests will have a once-in-a-lifetime opportunity to snorkel with an orca. Mid-May and June is also peak season for the really big female whale sharks. You will also see large pods of dolphins, turtles, different shark and whale species, hammerhead sharks around El Bajo and Los Animas, sea lions at Los Islotes, giant mantas at La Reina, shipwrecks and night dives, huge schools of fish and vibrant marine life. Spotter planes are on-hand to enhance your adventure.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
On the penultimate day of the tour the boat will start its way back to the mainland.
Day 6
Arrive back in Cabo San Lucas in time to enjoy a final breakfast onboard, before being transferred back to your local hotel or airport in Cabo. Guests can fly out in the afternoon.
Sea of Cortez South (8 Days / 7 Nights - 24 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, seals/sea lions, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: La Paz, Las Animas, La Reina, El Bajo, Espiritu Santo, San Franciscito, Loreto, San Pedro Martir. Kayaking. paddle boarding. swimming, hike into the hills, whatever you want.
Day 1
You should drop into the Nautilus dive center in Cabo San Lucas when you arrive in town to make sure you are all set for the cruise. There is a coach journey provided to La Paz, then board the yacht and get ready for diving the next day.
Days 2-7
The safari will include 4 dives per day, combining the very best of the southern Sea of Cortez. The sea is a diver’s paradise, and with its unique ecosystem and the overall natural beauty, it has earned UNESCO World Heritage Site status. Mid-May to July is a very special time with large aggregations of mobula rays. And when there are lots of mobulas, there are orcas!! There is a good probability that guests will have a once-in-a-lifetime opportunity to snorkel with an orca. Mid-May and June is also peak season for the really big female whale sharks, although you can spot these creatures throughout the summer. You will also see large pods of dolphins, turtles, different shark and whale species, hammerhead sharks around El Bajo and Los Animas, giant mantas at La Reina, night dives, huge schools of fish and vibrant marine life. Spotter planes are on-hand to enhance your adventure.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
Day 8
Enjoy a final breakfast onboard, before disembarking in La Paz and being transferred back to your local hotel or airport in Cabo. Guests can fly out in the afternoon.
Some trips use the port of Cabo San Lucas so check exact port details above.
Sea of Cortez South (Adventure) (8 Days / 7 Nights - 5 Dives)
Trip highlights: dolphins, manta rays, whales, schooling fish & big pelagics, non diving activities, onboard experts on photography, onboard experts on wildlife and natural history
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: Locations are flexible, depending on where the aerial support finds the mobulas and orcas. Often the best area is the triangle near La Paz between Espiritu Santo, Carpenter Rock (on the west side of Cerralvo), and Las Ventanas on Baja California
Day 1
Guests meet at the Nautilus dive center in Cabo San Lucas at 4 pm for any rental equipment. There will then be a complimentary underwater photography workshop on backscatter in preparation for the incredible photo opportunities you are going to have over the next few days. At 7:30 pm you will board the yacht. There will then be a boat briefing of the features, facilities and safety measures on board. Enjoy a delicious dinner then settle into your cabin as the boat gets underway for Cabo Pulmo.
Days 2-7
This is a special cruise with the primary focus of snorkelling and freediving with enormous schools of mobula rays, thousands strong, as they migrate across the Sea of Cortez, and the orcas (killer whales) that follow to prey on them. Mobulas are typically 5-7 feet across, and males leap far out of the water. You will also encounter them at night as they swarm around the boat lights in shallow protected bays. The orcas are an amazing sight too as they can grow up to 30 ft / 9m long and swim at 35 mph / 50 kmh.
Spotting planes will support the cruise for 3 days to assist with finding the biggest groups of mobula rays. Guests will be divided in to 2 groups at a time to use the high speed support boat to get them in the water at the optimal time. In the late afternoons, you take advantage of the kayaks and paddle boards, or take a beach hike.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
On the penultimate day of the tour you will have the opportunity to dive or snorkel at Cabo Pulmo World Heritage Biosphere Reserve, home to some of the fishiest waters around. Finish the day enjoying a delicious dinner under the stars as you sail again to Cabo San Lucas.
Day 8
Disembarkation time at Cabo San Lucas is usually after breakfast. The operator will help you arrange taxi transfers back to your local hotel or airport after breakfast.
Socorro Islands (9 Days / 8 Nights - 0 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: zz
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Sea of Cortez South (8 Days / 7 Nights - 24 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, seals/sea lions, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: La Paz, Bahia de Los Angeles, Las Animas, San Pedro Martir, La Reina, Espiritu Santo, San Franciscito, Loreto. Spotter planes, snorkel with whale sharks, beachcombing.
Day 1
You should drop into the Nautilus dive center in Cabo San Lucas when you arrive in town to make sure you are all set for the cruise. There is a coach journey provided to La Paz, then board the yacht and get ready for diving the next day.
Days 2-7
The safari will include 6 dives per day, combining the very best of the southern Sea of Cortez, and spotter planes are on-hand to enhance your adventure. The sea is a diver’s paradise, and with its unique ecosystem and the overall natural beauty, it has earned UNESCO World Heritage Site status. Snorkel and swim with scores of whale sharks that aggregate in a quiet bay deep in the Sea of Cortez, located at the edge of massive upwellings of nutrient rich oceanic water - it’s crazy!! Giant finback whales and sperm whales can also be spotted.
Loreto is another gem that is seldom visited. The diving is great, the scenery is fantastic. Going ashore on the deserted white sand beaches is unforgettable. We will be sure to visit all our old favorites including Las Animas, the pinnacle of San Franciscito, Espiritu Santo and La Reyna. You will also see large pods of dolphins, turtles, and fingers crossed for hammerhead sharks!! Shoreside is really cool as well with the largest breeding population of blue footed boobies in the world, as well as the large populations of brown boobies and brown pelicans.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
Day 8
Enjoy a final breakfast onboard, before disembarking in La Paz and being transferred back to your local hotel or airport in Cabo. Guests can fly out in the afternoon.
Sea of Cortez South (Adventure) (11 Days / 10 Nights - 15 Dives)
Trip highlights: dolphins, manta rays, whales, schooling fish & big pelagics, non diving activities, onboard experts on photography, onboard experts on wildlife and natural history
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: La Paz, Las Animas, La Reina, El Bajo, Espiritu Santo, San Franciscito, Loreto, San Pedro Martir, Bahia de Los Angeles. Kayaking, going ashore, hiking in the desert, snorkelling, paddleboarding, whatever you want.
Day 1
These cruises usually depart from La Paz, although there are occasional exceptions. You have the option to fly directly into La Paz, or into San Jose de Los Cabos with a coach journey provided to La Paz late afternoon. Cocktail hour starts as soon as you board! And as soon as we have completed provisioning, cleaning
and any last minute engineering, we will be underway for a lovely dinner and safety briefing on our way to the Sea of Cortez.
Days 2-10
This diving safari combines the very best of the southern Sea of Cortez. The sea is a diver’s paradise and, with its unique ecosystem and the overall natural beauty, it has earned UNESCO World Heritage Site status. July and August provide a unique opportunity to overlap the seasons when we traditionally encounter the most orcas of the year in the southern Sea of Cortez, with large numbers of whale sharks gathering up north in Bahia de Los Angeles. You will also see large pods of dolphins, California sea lions, turtles, different shark and whale species, hammerhead sharks around El Bajo and Los Animas, giant mantas at La Reina, night dives, huge schools of fish and vibrant marine life. Spotter planes are on-hand to enhance your adventure.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
Day 11
Enjoy a final breakfast onboard, before disembarking in La Paz and being transferred back to your local hotel or airport in Cabo. Guests can fly out in the afternoon.
Some trips use the port of Cabo San Lucas so check exact port details above.
Sea of Cortez South (Adventure) (12 Days / 11 Nights - Dives)
Trip highlights: dolphins, manta rays, whales, schooling fish & big pelagics, non diving activities, onboard experts on photography, onboard experts on wildlife and natural history
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities:
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(16 Days / 15 Nights - Dives)
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities:
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Sea of Cortez South (Adventure) (5 Days / 4 Nights - 3 Dives)
Trip highlights: dolphins, manta rays, whales, schooling fish & big pelagics, non diving activities, onboard experts on photography, onboard experts on wildlife and natural history
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: Locations are flexible, depending on where the aerial support finds the mobulas and orcas. Often the best area is the triangle near La Paz between Espiritu Santo, Carpenter Rock (on the west side of Cerralvo), and Las Ventanas on Baja California
Day 1
Guests meet at the Nautilus dive center in Cabo San Lucas at 7 pm for any rental equipment. At 8 pm you will board the yacht. There will then be a boat briefing of the features, facilities and safety measures on board. Enjoy a delicious dinner then settle into your cabin as the boat gets underway for the Sea of Cortez.
Days 2-4
The Sea of Cortez is a magical and wonderful place teeming with marine creatures of all sizes. Guests encounter and interact year-round with friendly California sea lions and mega pods of bottlenose dolphins. If you are lucky, you might encounter spinner and Risso’s dolphins. Mobula rays are present year-round and aggregate in enormous schools from March through July. Colossal fin whales (second in size only to blue whales), sperm whales, rays, and whale sharks are present year-round and migrate seasonally up and down the Sea of Cortez. Pilot whales, pseudo orcas, and minke whales are also known to migrate in the area, although they are less commonly seen.
Many experienced divers agree that the vast schools of fish witnessed by here by divers, snorkelers, and swimmers create the most densely packed fish tornadoes seen anywhere in the world. Hammerhead and tiger sharks have made a comeback after 20 years of tightly restricted commercial fishing. In the late afternoons, you take advantage of the kayaks and paddle boards, or take a beach hike.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas. Finish the tour enjoying a delicious dinner under the stars as you sail back to port.
Day 5
Disembarkation time at Cabo San Lucas is usually after breakfast. The operator will help you arrange taxi transfers back to your local hotel or airport after breakfast.
Sea of Cortez South (7 Days / 6 Nights - 20 Dives)
Trip highlights: whale sharks, hammerhead sharks, shark action, dolphins, manta rays, whales, seals/sea lions, schooling fish & big pelagics
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: Cerralvo Island, Las Animas, La Reina, El Bajo, Espiritu Santo, Los Islotes, Salvatierra wreck, Fang Ming, San Jose. Kayaking. paddle boarding. swimming, hike into the hills, whatever you want. Backscatter Imaging workshop at SeeCreatures.
Day 1
You should drop into the Nautilus dive center in Cabo San Lucas when you arrive in town to make sure you are all set for the cruise. We encourage you to take advantage of our complimentary Backscatter Imaging workshop when you check in. Cocktail hour starts as soon as you board early evening. And as soon as we have completed provisioning, cleaning and any last minute engineering, we will soon be underway for a lovely dinner on our way to the Sea of Cortez.
Days 2-6
The safari will include 4 dives per day, combining the very best of the southern Sea of Cortez. The sea is a diver’s paradise, and with its unique ecosystem and the overall natural beauty, it has earned UNESCO World Heritage Site status. Mid-May to July is a very special time with large aggregations of mobula rays. And when there are lots of mobulas, there are orcas!! There is a good probability that guests will have a once-in-a-lifetime opportunity to snorkel with an orca. Mid-May and June is also peak season for the really big female whale sharks. You will also see large pods of dolphins, turtles, different shark and whale species, hammerhead sharks around El Bajo and Los Animas, sea lions at Los Islotes, giant mantas at La Reina, shipwrecks and night dives, huge schools of fish and vibrant marine life. Spotter planes are on-hand to enhance your adventure.
Meals on the Nautilus Under Sea include international fare and Mexican specialties. Pre-breakfast features cereal, toast, yoghurt, juice and tea or coffee. Your cooked breakfast includes eggs cooked to order, sausages, hash browns and toast. Other dishes include homemade fish tacos, Italian pizzas, fish burgers and quesadillas.
On the penultimate day of the tour the boat will start its way back to the mainland.
Day 7
Arrive back in Cabo San Lucas in time to enjoy a final breakfast onboard, before being transferred back to your local hotel or airport in Cabo. Guests can fly out in the afternoon.
This itinerary sometimes uses the port of La Paz. Check exact port details above.
(10 Days / 9 Nights - Dives)
Diving environment: advanced divers, beginner divers, cage diving, caverns, drift diving, healthy reefs, off the beaten track, very popular, wall diving, wreck diving
Dive sites and activities: zzzz
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[Information is best estimate in ideal circumstances and subject to changes beyond our control. The itinerary is a guide only and may be adapted to best suit the weather, tides, currents, availability and other prevailing events. Price is for the cruise, not for an exact number of dives].
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