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!?
Featured Upcoming Adventures
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Celebrating 50 years with 50% off sale
Orcas and Whale Sharks
This is a unique trip overlapping 2 seasons in July combining mobula rays / orcas / whale sharks with spotter airplane support. So, break out the good china, sign up for a trip, and join us for a very special 10 day / 9 night ultimate whale expedition this summer.
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Early booking discount $*
October Sea of Cortez 8 day / 7 night adventure
Loreto great circle. Best visibility and warmest water of the year. New trips posted because of heavy demand.
* Bookings prior to may 15, 2024More info -
Early booking discount Jan. trips
Gray whales of San Ignacio Lagoon
4 days / 3 night.
This is the most extraordinary whale interaction on the planet!
Fly-in. Glamping accommodationMore info -
Bait Ball Season
Dive Socorro Island in June
We love diving Socorro, especially in the spring and early summer. Socorro is always stunning, raw, and primal, offering fantastic diving experiences known for the super-friendly and interactive giant mantas.
More info
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.
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Nautilus Explorer
Canadian built
132 feet long
SOLAS safety certified
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Nautilus Belle Amie
Launched in 2015
147 feet long
Ultra-quiet
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Nautilus UnderSea
105 feet long
Full-width superstructure
Enclosed dive deck
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Nautilus Gallant Lady
116 feet long
6 large suites
1,700 horsepower
Tour Ship
We go above and beyond
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.
Our values and culture
Safety First, Always
Our culture of relentless and obsessive attention to safety has been a cornerstone of our business from our early days operating in the 1980’s.
It’s 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. A happy crew makes for a happy ship and the very best in guest experience.
The best of
the best
Our ships are crewed by teams of extremely hard-working men and women from around the world who love the ocean just as much as you do.
Blogs
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Swimming With Whale Sharks in Mexico
Experience swimming with whale sharks in Mexico. Join a Nautilus Liveaboard in the Sea of Cortez to enjoy seamless, ethical adventures.
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Diving with Sea Lions and Exploring Underwater Caverns
Diving with sea lions in the Sea of Cortez: “…the marine life and the thrill of discovery made every dive unforgettable!”
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“Thousands of dolphins. Marlin slicing through.”
A fever of mobulas gliding along like flying tortillas, and then literally thousands of dolphins performing high speed acrobatics.
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Static Baitball Surrounded by Blue Striped Marlin
AMAZING DAY ONE AT MAG BAY! Whales around, dolphins everywhere, a static baitball surrounded by blue striped marlins, plus some sea lions and
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Is Diving With Sharks Dangerous?
Experience the thrill of diving with sharks in Mexico (safely!) with Nautilus Liveaboards — where awe and adventure meet respect.
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Top Snorkeling in Mexico: Magdalena Bay Sardine Run
Discover the Magdalena Bay sardine run. Swim with bait balls and see predator vs prey action at one of the top snorkeling spots in Mexico.
