Nautilus Under Sea, Mexico
9.0 Superb - Nitrox available
- Jacuzzi / Hot Tub
- En-Suite bathrooms
“This was our second trip on this boat and we have been 100% satisfied both times.”
Highlights
The latest addition to the Nautilus fleet in Mexico, the 27m Nautilus Under Sea offers divers spectacular dive tours to the Socorro Islands in Mexico. An ex-research vessel with her claims to fame, including being the support boat for the James Bond Movie "License to Kill" and a Deep Rover mission with Dr. Silvia Earle, as well as many research and photography missions, the former Under Sea Hunter, has now re-located to Mexico. She caters to 19 guests in 9 en-suite, air-conditioned cabins. The Undersea Hunter also offers plenty of room for relaxation, with a comfortable lounge and dining area and a large sun deck with loungers.
The dive deck offers ample space for kitting up and gear storage, as well as camera set-up and personal camera storage areas. The Nautilus Under Sea offers an amazing destination - the Socorro Islands. Diving the Socorro Islands, divers will come face to face with Giant Pacific Mantas, known as the friendliest mantas in the world! Also, there are sightings of up to 10 different kinds of sharks, dolphins, whale sharks, hammerheads, and humpback whales. Nautilus Under Sea offers 6-day trips with a pick-up in San Diego and leaving from Ensenada from July to November.
Don’t miss out on these amazing trips. Book online today to start your adventure.
Choose your departure date
Included: Drinking Water, Soft drinks, Tea & Coffee, Welcome Cocktails, Full-Board Meal Plan (All meals), Snacks, Special Dinner, Diving Package, Kayaks, Stand Up Paddleboard, Cabin Towels, Complimentary Toiletries, Deck Towels.
Required Extras: 5% VAT, Dive Insurance, National Park Fees (100-172 USD per day), Port Fees (35 USD).
Optional Extras: Travel Insurance, Gratuities, Hotel Transfer, Alcoholic Beverages, Nitrox (125 USD per trip), Private Dive Guide, Rental Gear, WiFi internet.
Book now, pay later: You can easily place your booking online. We will then hold the spaces for you and you can confirm with a payment later.
* Extra fees are shown per person.
Pay by bank transfer or online with
Drawings & Vessel Layouts
Cabin Types
Nautilus Under Sea Reviews
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- 9.0 Superb
- Vessel 8.4
- Crew 9.2
- Food 9.5
- Diving 9.3
- Value 8.6
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- 10 Exceptional
- Derek M
-
United States
Incredible week - go here to see the BIG stuff!
Had an awesome week! The best pelagic big stuff diving I've had anywhere in the world, mantas on every dive, hammerheads, close encounters with dolphins, tons of sharks and humpback whale watching from the surface. The crew was great, and were willing to take us on a launch between dives to go snorkeling with a school of false killer whales. The captain coordinated with other boats so that we were the only boat at Roca Partida (having multiple boats would have reduced our dives there).
- Recommended for
- Saw tons of pelagics and lots of fish life!. Awesome crew, they worked hard and put us in the best position for good diving.. Great people on the boat and time to share stories..
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- 9.6 Exceptional
- Suzanne I
- United States
Sea lions & whale sharks in the Sea of Cortez!
I just returned from an incredible week in the Sea of Cortez aboard the Nautilus Undersea. The diving was just incredible and definitive trip highlights were diving with the sea lions and snorkeling and swimming with the whale sharks. The boat crew were extremely friendly and worked nonstop and we had 3 amazing dive guides throughout the week. We learned quite a bit about the Sea of Cortez through various nightly presentations on board and also had fun swimming and kayaking during surface intervals. I can’t say enough about our chef as all the meals were fantastic and our hostess was so friendly and always smiling. What an incredible week!
- Recommended for
- Incredible diving with sea lions. Snorkeling and swimming with whale sharks. Very friendly crew.
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- 10 Exceptional
- Samantha E
-
Mexico
Spectacular trip
Revillagigedo is beautiful, lots of life, sharks, mantas, dolphins, whales. The boat super comfortable, the crew does everything to give you the best experience possible. The only thing is that there is a day when you have to stop for the navy to do a check-up and there the diving is not good at all. It would be nice if other better dive spots were explored for that day.
- Recommended for
- The crew. The food. Marine life.
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- 9.6 Exceptional
- Younggil S
-
South Korea
Worth diving trip
In most divings, we can see something interesting. The crew members were nice and friendly. They help us enjoying the diving trips.
- Recommended for
- amazing diving experiences. good crew members. nice guides.
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- 9.2 Superb
- Allain D
-
France
Some unforgettable dives
A beautiful voyage in the Sea of CortezSome unforgettable dives A good understanding between the divers
- Recommended for
- The Chef's Kitchen. Whale shark and seal encounters. The availability of the team.
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- 9.2 Superb
- Jon H
-
United Kingdom
An outstanding experience, I'll definitely dive with Nautilus again.
Sea lions! Who knew they were so much fun under water :) Good viz and great diving all-round, covering an excellent range of sites (and more dives than advertised - 16 vs the 12). Sundowners and beers (from a very well-stocked bar) under the stars. All made extremely easy and enjoyable by the wonderful staff.
- Recommended for
- The staff were all fantastic, friendly, extremely professional but also engendered a relaxed, enjoyable experience. The vessel is in good repair, well set up for diving and relaxing. And the trip is all made very easy and efficient by the shoreside support.
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- 8.8 Fabulous
- MAGDALENA B
-
Netherlands
Great experience
Great white sharks, great crew and participants, well organised
- Recommended for
- abundant great white sharks, amazing crew, comfortable boat
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- 9.2 Superb
- Maria T
- United States
amazing crew that went above and beyond
Nautilus Under Sea is a very comfortable boat, with nice cabins, lots of storage space and very nice bathrooms in cabins. Diving deck organization was perfect, enough space for everyone, large table for cameras. The diving crew was very helpful, enthusiastic, and managed the diving part in an extremely safe and organized manner. Even when the diving conditions were difficult because of the weather, they expertly got everyone in and out of skiffs. All in all, amazing experience of diving with mantas, dolphins, Galapagos, silky sharks and other marine life, which is abundant in the Socorro.
- Recommended for
- sharks, mantas, and crew attitude
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- 8.4 Very good
- Justin J
- United States
Great value
Was great to dive somewhere new
- Recommended for
- Diversity in sea of cortez. crew effort. lots of diving.
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- 9.2 Superb
- Bruce P
-
Canada
Excellent
Diving trip done in August 2025. We really enjoyed our time on the Nautilus Undersea. Crew was amazing and worked very hard at making we were happy and comfortable. Safety of guest was taken very seriously. Well organized. Swimming with Whale Sharks was great. We did one night dive and it was the best night dive we have ever done so far. Boat is a bit old but we were comfortable. No complaints at all. We are already planning our next dive trip in Socorro with them.
- Recommended for
- The crew. Diving. Food.
