Nautilus Dive Adventures - Socorro Island Scuba diving

Twenty years from now, you will be more disappointed by the things you didn’t do than those you did.

– Mark Twain

Nautilus-Home-Mobile-NGL

Liveaboard Diving
Socorro. Cocos. Sea of Cortez.

Socorro, Sea of Cortez, Mexico Sardine Run, Cocos Island, San Ignacio Lagoon

We do it all. If there are cool big animals, we want to share the experience with you. Our adventures combine the utmost safety, comfort and luxurious touches with excellence in guest experience. From orcas and mobula rays to super playful dolphins, great whales, 12 species of sharks, giant mantas, and so much more. We cover it all. The only question is which expedition to sign up for next!?

Socorro Island

Socorro Island

Giant Mantas, Dolphins & 12 Species of Sharks

Known for its stunning, raw, and primal beauty, Socorro offers fantastic diving experiences, where super-friendly giant mantas, playful bottlenose dolphins, and 12 species of sharks await your affection.

Sea of Cortez - Whale Sharks

Sea of Cortez

Ultimate Whale Sharks

Bahia de Los Angles is a very special place with up to 220 friendly and curious whale sharks visiting every season and is best accessed by a liveaboard expedition ship.

Sea of Cortez - Orcas

Sea of Cortez

Orca Expeditions

These adventures are not just about orcas but depending on the season, blue, finback, sperm and pilot whales and getting in the water with massive schools of mobula rays, huge pods of dolphins, whale sharks and of course, super playful sea lions.

Sea of Cortez - Aquarium of the World

Sea Of Cortez

5 & 7-Night Liveaboard Diving Adventure

You will soon experience first hand why Jacques Cousteau named the Sea of Cortez the “Aquarium of the World” for the variety and amount of marine life.

Cocos Island - Island of the Sharks

COSTA RICA

Cocos – Island of the Sharks

Known as the ‘Island of the Sharks,’ it’s not just about the famous schooling hammerheads where the sharks come to you, but a tiny tropical rainforest oasis in the eastern Pacific.

Magdalena Bay - Mexican Sardine Run

Magdalena Bay

Mexican Sardine Run

During mid-October to December, a magical event happens in the nutrient rich swirling blue waters off Magdalena Bay where All sorts of predators gather to hunt on the second largest sardine run in the world.

San Ignacio Lagoon -Whale Interaction-

San Ignacio Lagoon

The Most Extraordinary Whale Interaction on the Planet

How do you even being to describe the experience of a giant 40-foot long whale, looking you in the eye and communicating very clearly that they want you to put your hand in the water.

Baja Ultimate Whales

Baja Ultimate Whales

Expedition Yacht & Whale Camp

Meet the most majestic whales on the planet: Gray whales, humpbacks, blue whales, fin-back whales and whale sharks. Lets not forget about the huge pods of dolphins.

Your Home at Sea

Our liveaboard diving ships were constructed with careful consideration. Relentless and obsessive attention to safety has been a cornerstone of our business from our very early days in the 1980’s.

Nautilus Explorer

Our flagship featuring an all new super-large dive deck and water level platform combined with picture windows around the main salon and separate dining room.

Nautilus Belle Amie

We launched the Belle Amie in 2015 and she is a beauty. Modern. Super spacious. Designed specifically for Socorro. Featuring suites in which you feel that you are staying in a hotel.

Nautilus UnderSea

The UnderSea first entered service in 1968 as the personal submarine tender to Dr. Perry of Perry Oceanographic. We graced the ship with a massive shipyard refit including: stretching the hull out to 105 feet, a new superstructure and extended sun deck, a bulbous bow and stability system.

Nautilus Gallant Lady

Imagine a 116 foot yacht that accommodates small groups of 12 divers in 6 large suites. Our beautiful Gallant Lady combines the luxury of a yacht with the thoughtful design of a dive deck built for divers.

Mango Wind

Our beautiful Leopard 45 sailing catamaran provides a different and intriguing way to experience the Sea of Cortez. Sailing is fun. Sailing is awesome!

Nautilus Westerly

Giving back. At our core, we believe in giving back to Mother Ocean. One of the ways we do this is to make the Westerly available at cost for conservation or science trips around Baja and out to both Socorro and the Islas Marias.

What Makes Us Different

01

Safety First


The cornerstones of everything we do: safety, excellence in guest experience, happy staff, and happy crew.

02

Guest Excellence


Excellence in guest experience is all about you. Our focus is to ensure that you as our guest are safe and able to enjoy your vacation to the highest level.

03

Animal encounters


We provide the best opportunities for encounters, which are always conducted with the utmost respect and only on the animals’ own terms. It’s entirely their choice to swim over and check us out.

See what our guests recently have said about Us

Latest Blogs

2024 Mobulas & Orcas Season

September 11th, 2024

2024 Mobulas & Orcas Season

We had a terrific 2024 mobulas and orca season. We now believe there are at least 3 pods of orcas that are resident year-round in the Sea of Cortez. Not just around La Ventana, but further north as well. In fact, we saw one pod feeding off loreto just yesterday, Sept 10 and then again this […]

Sneak Peek Into 2024 Mexico Sardine Run

September 10th, 2024

Sneak Peek Into 2024 Mexico Sardine Run

The animals of the Mexico Sardine Run are really something—REALLY SOMETHING! How do you describe a giant bryde’s whale appearing 20 to 30 feet away in indigo blue water, gulping its way through poor frightened sardines! Or the sight of super-fast marlin streaking their way around you. Or as happened last December, humpback whale mommas […]

Socorro Season Like No Other

July 26th, 2024

Socorro Season Like No Other

We’ve been diving Socorro since 1978 and have never seen a season like this. Yeah. In the old days, the diving was phenomenal, with stories of 30 giant mantas circling the divers and loads of sharks. Our first boat was the funky old 120 ft wooden Baja Explorador, a converted research boat sans air conditioning (everyone slept […]

Does a spotter airplane make any difference to our Sea of Cortez trips???

July 26th, 2024

Does a spotter airplane make any difference to our Sea of Cortez trips???

Heck yes!! Take yesterday, for example. It was a nice day in late July, the first dive day on an Ultimate Whale Shark expedition to Bahia de Los Angeles. We were anchored off Las Animas, north of La Paz. The warm-up dive was great, with loads of fish and California sea lions. Our guests loved it. For […]

Costa Rica Extension 6 Days / 5 Nights Liveaboard – 95

July 26th, 2024

Costa Rica Extension 6 Days / 5 Nights Liveaboard – $1995

Costa Rica is home to some of the world’s greatest biodiversity, with dense jungles, rainforests, national parks, volcanoes, rushing rivers, spectacular waterfalls, sandy beaches, and of course, beautiful diving, hiking, kayaking and swimming. Experiencing the diving, tropical rainforests and national parks of Costa Rica is something not to be missed.  On this expedition, we will spend […]

The perfect end to an amazing trip.

July 19th, 2024

The perfect end to an amazing trip.

There is no better way to end a mobula and orca trip. Today, the last day of a trip where it must be said, we have had luck and help from the entire Nautilus team, such as the plane that helps us every day to spot marine life, other ships such as the Nautilus Undersea […]



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