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

Mobulas & Orca Adventure

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

The Sea of Cortez has rebounded with life best described as different season, different seas. Magea pods of dolphins year-round, super friendly sea lions, fast schools of fish, and whales!

Cocos Island - Island of the Sharks

Sea Of Cortez

Loreto & La Paz Diving

We have been running this trip since 1978 and have learned a thing or two about where to find the best diving in this part of the Sea of Cortez!

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

A big school of hammerheads, giant manta, and a pod of 8 dolphins playing.

December 3rd, 2024

A big school of hammerheads, giant manta, and a pod of 8 dolphins playing.

“It’s such a pleasure to have a dive that’s so incredible that most of the divers come out of the water shouting it was the best dive of their entire life. Abundance of mantas, dolphins, schooling hammerheads, Galapagos sharks, silver tips, jacks, tunas…. All at the same time.” – Eline, DG, aboard the Belle Amie […]

An incredible first day in the Sea of Cortez

October 6th, 2024

An incredible first day in the Sea of Cortez

Upon arriving from a long bus ride from Cabo San Lucas to La Paz, we were greeted by the crew of Under Sea at the dock and transported in their RIB (Rigid Inflatable Boat) to the mother ship, it was already dark and we could not yet appreciate our surroundings. We were greeted onboard by […]

A perfect day aboard the Gallant Lady

October 3rd, 2024

A perfect day aboard the Gallant Lady

“We had a great day of diving on Day 2 of the Sea of Cortez adventure! Our first dive at Las Animas we saw a school of 20+ hammerheads, sea lions, and a super active octopus on the reef! We continued diving around the area, seeing hammerheads on 3 out of 4 dives along with […]

Playful sea lion pups in the Sea of Cortez!

October 2nd, 2024

Playful sea lion pups in the Sea of Cortez!

“Floating slowly along with the current, looking for tiny creatures in the coral, suddenly a large body zooms past the side of your mask: it is one of several playful sea lion pups coming to investigate the other large mammals blowing bubbles near their rookery. Curious and unafraid, they dive, pirouette and change direction in […]

“A simple way to sum my experience: a trip of a lifetime.”

September 27th, 2024

“A simple way to sum my experience: a trip of a lifetime.”

“A simple way to sum my experience up would be simply put: a trip of a lifetime. I feel so incredibly grateful to be in a position where I am able to explore such a beautiful part of the world. To experience it all with world class service has truly been a gift. I have […]

Manta rays, large schools of giant hammerheads, sea lions and more!

September 25th, 2024

Manta rays, large schools of giant hammerheads, sea lions and more!

“I am so happy my friend told me to come on this trip. I have been on one liveaboard dive trip before and this one was significantly better. The diving took us to an amazing variety of places. There were manta rays interacting with us, large schools of giant hammerheads, sea lions to play with […]



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