Nautilus Under Sea, Mexico

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The latest addition to the Nautilus fleet in Mexico, the 27m Nautilus Under Sea offers divers spectacular dive tours to the Socorro Islands and Guadalupe in Mexico. An ex-research vessel with her own 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 17 guests in 8 en-suite, air-conditioned cabins. The Undersea Hunter also offers plenty of room for relaxation, with a comfortable lounge and dining area, and 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 two amazing destinations - Socorros and Guadalupe. Diving the Socorro Islands divers will come face to face with Giant Pacific Mantas, and these ones are known as the friendliest mantas in the world! Also there are sightings of up to 10 different kinds of shark, dolphins, whale sharks, hammerheads and humpback whales. Guadalupe is cage diving with Great White Sharks. A once in a life-time opportunity to get up close with these amazing creatures, 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 and call us or book online today to start your adventure.


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Included: Accommodation, Tanks, Weights, Belts, Dive master services, All meals, Towels Provided

Excluded: 5% VAT, Port fees (USD $65), Medical Diving Insurance (mandatory), Selection of wines, Imported and domestic beers, Single malt scotches and a variety of spirits, Nitrox, Argon, Gas mixes, Dive equipment rental (must book in advance), Rebreather support including zorb and specialized tank rentals (limited supply on a first come first serve basis),100 cu. ft. steel tanks (16lbs more negative than an aluminum 80), Gift shop purchases, Crew gratuities. Transfers: SJD to Hotel El Ganzo $20 USD / Hotel El Ganzo to SJD $15 USD

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.

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Boat features

  • Leisure Deck
  • Shaded diving deck
  • Camera Station
  • Audio & video entertainment
  • Library
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Non-Diver (Snorkeler) Friendly
  • Warm Water Showers
  • Photography Station
  • Outdoor Dining
  • Separate rinse for u/w camera
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms

Food & Drinks

  • Western Food
  • Local Food
  • Vegetarian Options
  • Buffet style
  • Beer available
  • Selection of wines
  • Fine Cuisine
  • Snacks All Day

If you have any specific dietary requirements whilst on-board your cruise, you can add this to your special requests on step 2 of the booking form. We advise limiting these requests to religious beliefs or food allergies.


Diving

  • Nitrox available
  • Rinse hosts
  • Dive deck
  • Tenders for diving

The crew speaks English.


Gear Rental

There is diving gear available to rent on this boat. Please provide your rental needs on the booking form.
You will need to pay for the rental gear on board of the boat. Show prices.


Drawings & Vessel Layouts

Nautilus Under Sea Deck Plan floorplan

Boat Specifications

  • Year built 1968
  • Year renovated 2016
  • Length 90ft
  • Beam 24ft
  • Top speed 9.5 knots
  • Cruising speed 9 knots
  • Engines Twin Caterpillar 240 hp ( Total 480 HP )
  • Max guests 17
  • Number of cabins 8
  • Number of bathrooms 8
  • Tenders One 22 ft. heavy duty fiberglass dive boats One 17 ft. rigid bottom inflatable
  • Water capacity 6000 gallons
  • Fuel capacity 8000 gallons
  • Freshwater maker 1800 gallons/day

Boat Navigation and Safety

  • Radar
  • Depth Sounder
  • GPS
  • Radio VHF/DSC/SSB
  • E.P.I.R.B. Distress System
  • Emergency Rafts
  • Life Vests
  • Fire Alarm & Fire Extinguishers
  • Oxygen
  • First Aid Kits
  • Satellite & mobile phones
  • Crew trained in first aid
  • Emergency flares

Nautilus Under Sea Reviews

  • 9.2 Superb
  • 8 Verified Reviews
  1. Vessel
    9.0
  2. Crew
    8.8
  3. Food
    9.5
  4. Diving
    9.5
  5. Value
    9.0
  • 9.6 Exceptional
  • Joel G
  • United States United States
best trip for the price

getting bumped by a great white and loosing balance in the cage.

Recommended for
Sharks, sharks and a sea lion chasing a small juvenile white.
  • 10 Exceptional
  • Marie-Josee H
  • Canada Canada
Adventurous, yet safe and confortable, unforgettable!

Whale shark, ball of fishes and swirdfish

Recommended for
The dive, the crew and the guests!
  • 9.2 Superb
  • Maria T
  • United States 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
  • 8.0 Very good
  • Andreas T
  • Austria Austria
Great if you like big fish

Good trip for more experienced divers. A lot of blue water and current but most of the time it is worth the wait and struggle because you see a lot of big fish you only find on some other places. Boat has been refitted and is nice and has good standard. Very nice crew, DMs are experienced and won‘t look after you all the time. Trip to the islands is long and exhausting though especally if the swell comes in. Overall a very good trip to check off some large pelagic fish and sharks.

Recommended for
Hammerheads Whaleshark Mantas
  • 8.8 Fabulous
  • MAGDALENA B
  • Netherlands Netherlands
Great experience

Great white sharks, great crew and participants, well organised

Recommended for
abundant great white sharks, amazing crew, comfortable boat
  • 8.8 Fabulous
  • Michael R
  • Canada Canada
Great White Shark Diving at Guadalupe Island

Full points for the crew, food. and the diving experience. It is well deserved. The cabin comfort didn't rate full points because we had issues with the central air in the cabins below decks. Our room was too hot while someone else was getting all our cold air. We were offered and accepted an upgrade to the premium cabin, so it ended well for us, and the captain said they will work to resolve this problem in the future. As someone with thousands of dives around the world, and having seen thousands more sharks, I wasn't enthusiastic about diving in a cage, but I also hadn't seen great white sharks before. After this experience, I would do it again. I averaged 4 to 5 hours a day in the cages watching the great white sharks, and they didn't disappoint me. They were very photogenic, with lots of photos and videos made. It is an experience even the "hardcore" divers should try. Bring a drysuit if you have one, or the thickest wetsuit you have. The water is cool, and you'll be able to stay in longer and more comfortably.

Recommended for
1. Seeing the great white sharks. 2. Seeing Bullet, a very large female that hadn't been seen in the last ten years. 3. Up close encounters with great white sharks.
  • 8.8 Fabulous
  • Richard M
  • United Kingdom United Kingdom
Fantastic viewing of Great Whites and a super enjoyable trip

Seeing Lucy a big female turn up for last few hours of trip

Recommended for
Sharks, food and visibility
  • 10 Exceptional
  • gregory M
  • France France
the best of my life

huge pregnent femelles around the cage

Recommended for
the place,the boat,the staff