Twenty years from now, you will be more disappointed by the things you didn’t do than those you did.
– Mark Twain
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Manta Rays met us at every diveToday we returned to San Benedicto and dove “The Boiler”. More challenging to get on and off the skiffs, but we had 4 days to learn. The 4 teams managed well. The new challenge…
Jim Day, 18 May 2024→ Read More -
Amazing Dive Guides at SocorroTook a trip on Belle-Amie in mid May with these two experienced dive masters as crew. Right away I had noticed their attention to detail and humble work constantly cleaning and pre…
John Reed, 17 May 2024→ Read More -
Socorro: Absolutely exhilarating!My favorite dive was at Cabo Pearce yesterday, when the dolphins and mantas came together. Absolutely exhilarating!! Nancy, Hawaii.
Nancy, 17 May 2024→ Read More -
Sharknado” on the first dive!We spent the entire day at Roca Partida and made four dives in different areas around “The Rock”. We met schooling White Tip sharks in what can only be described as a “Sharkn…
Jim, 16 May 2024→ Read More -
massive black Manta and several Chevron MantasToday we dove off the island of Socorro at Punta Tosca. Another field day for Manta lovers, but then again who isn’t? We dove with one massive black Manta and several Chevron Man…
Jim Day Naples, FL, USA, 16 May 2024→ Read More -
Amazing Dive Guides at Socorro – 17 May 2024Took a trip on Belle-Amie in mid May with these two experienced dive masters as crew. Right away I had noticed their attention to detail and humble work constantly cleaning and prepping various things on the boat. It was…→ Read More
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Captain’s Noon Reports – Under Sea – 2024-05-16 – 16 May 2024The guests are fine, the Dive Guides organizing the diving deck to have a safe diving operation on this trip.→ Read More
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Sharknado” on the first dive! – 16 May 2024We spent the entire day at Roca Partida and made four dives in different areas around “The Rock”. We met schooling White Tip sharks in what can only be described as a “Sharknado” on the first dive. There were als…→ Read More
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Nautilus Explorer is Mantas and dolphins galore! – 16 May 2024Nautilus Explorer greeted us with such a professional, friendly, and safety-oriented crew. As an experienced scuba diver, they still briefed us and guided us every step of the way. I always felt safe, and they were punct…→ Read More
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Incredible Trip to Socorro! – 16 May 2024Day Three of the Belle Amie dive trip to Socorro Island really delivered. It started out with an incredible 15 minute show from Giant Manta’s, followed by a close encounter with Silky Sharks. The Hammerheads joined…→ Read More
Interacting with some of the most charismatic animals on the planet!
Friendly giant mantas and dolphins, majestic orcas, blue whales with their calves, whale sharks, the most extraordinary interaction with gray whales, massive schools of hammerheads, tiger sharks and 10 other shark species, mega schools of mobula rays, curious California sea lions, and whirling tornadoes of fish. Majestic sperm, fin, and humpback whales. Showcasing the beauty of Baja Mexico and the tropical rainforests of Costa Rica.
There is much to explore, dream, and discover!
Featured Upcoming Adventures
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Early booking discount $*
Orcas fiesta
Don’t miss out on the most Orcas and interaction of the year. July and August can be crazy good for Orcas with 20 sightings July 2023 and with our spotter airplane, our “eyes in the sky”, we are hoping this summer will be even better. This our only liveaboard open boat of the year that includes diving Cabo Pulmo. And it’s prime time for Hammerhead Sharks and Sea Lions at Las Animas.
* Bookings prior to may 15, 2024More info -
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
Tour Ship -
Nautilus Belle Amie
Launched in 2015
147 feet long
Ultra-quiet
Tour Ship -
Nautilus UnderSea
105 feet long
Full-width superstructure
Enclosed dive deck
Tour Ship -
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.
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Amazing Dive Guides at Socorro
John Reed, 17 May 2024Took a trip on Belle-Amie in mid May with these two experienced dive masters as crew. Right away I had noticed their attention to detail and humble work constantly cleaning and prepping various things on the boat. It was almost a 30 hour trip to the first island. They never waivered or acted annoyed at […] -
Sharknado” on the first dive!
Jim, 16 May 2024We spent the entire day at Roca Partida and made four dives in different areas around “The Rock”. We met schooling White Tip sharks in what can only be described as a “Sharknado” on the first dive. There were also many Yellowtail tuna on all of our dives. Unfortunately none of them appeared on our […] -
Nautilus Explorer is Mantas and dolphins galore!
-Kristen Lopez, 16 May 2024Nautilus Explorer greeted us with such a professional, friendly, and safety-oriented crew. As an experienced scuba diver, they still briefed us and guided us every step of the way. I always felt safe, and they were punctual and helpful for all of the 3, but mostly 4 dives a day. We would wake up to […] -
Incredible Trip to Socorro!
justin, 16 May 2024Day Three of the Belle Amie dive trip to Socorro Island really delivered. It started out with an incredible 15 minute show from Giant Manta’s, followed by a close encounter with Silky Sharks. The Hammerheads joined the party soon after but when Xavier, our dive guide made a strategic location move, we enjoyed the most […] -
Favorite Dives at Punta Tosca
Diego , 15 May 2024This trip has exceeded all my expectations. The dive sites are incredible and the crew, accommodations, and food are outstanding. This is by far the best liveaboard I have done. My favorite dives were at Punta Tosca where we had mantas and dolphins and Roca Partida where we had a whole pod of dolphins hanging […]
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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May 15th, 2024
Roca Partida: A trip to Remember!
Another day in Roca Partida and it was superb, lots of yellow fin tunas around the rock, of all sizes!!! it was a non stop all day!!! playful dolphins on the first dive, and lots of sharks all day long, it was a day to remember! Felipe
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May 13th, 2024
San Benedicto: An experience of a lifetime
What an amazing experience! The first night of the ride out to San Benedicto was rough, but the crew was beyond helpful and understanding. I would recommend bringing plenty of Dramamine. However, things calmed down greatly after the first 6 hours. Once we were anchored at the dive site, there was only a slight rocking […]
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May 13th, 2024
Introducing Lifeline nexGen Marine Rescue Radio GPS
Quite frankly, we didn’t set out to develop nexGen LifeLine. Initially, we were just planning to replace the processor and GPS modules with the newest, latest, and greatest. But along the way, our engineers kept finding more and more they could improve, from firmware to software, the design of the board, and many more components.
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May 9th, 2024
NOAA announces that the gray whale population has rebounded
The “unusual mortality event” is officially closed and over. Looking in their eyes.The eyes of a grey whale.A huge 45-foot whale that swims over to be kissed and stroked. You might be a seasoned traveller who has gone on safari in Africa or visited Antarctica, explored Alaska and Haida Gwaii, or experienced the Arctic. But […]
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May 9th, 2024
Special Day at Roca Partida
What a special diving day we had at Roca Partida. The first dive of the day we jumped exactly at the sweet spot. Where the current hits the rock is the perfect place to have amazing encounters with pelalgics, that is what we called the sweet spot!. minutes when we started hearing them come. A pod of around 40 dolphins came to us. For all the dive they stayed with […]
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May 8th, 2024
Best Time to Dive Socorro!
Dive into Socorro: When’s the Best Time? Often, we’re asked, when we think is the best time to dive Socorro, and although the answer may vary depending on our guests’ preferences and who’s responding, this season, everyone seems to agree that the best time to dive Socorro is on this year, and this season! Socorro […]