
Nautilus Under Sea dive boat review
The 27 meters Nautilus Under Sea is a liveaboard sailing to the Guadalupe and Socorro Islands of Mexico. The dive boat is part of the Nautilus fleet and operates shark cage diving as well as regular scuba diving operations. Formerly known as the Under Sea Hunter, the vessel has undergone a full refit in 2016 and changed name.
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Boat Cabins & Layout
The Nautilus Under Sea features 8 cabins on-board, for a maximum capacity of 17 divers. All the cabins have air-conditioning as well as en-suite bathrooms and are spread between the 3 decks. Indeed, the upper deck is home to a premium suite cabin which is spacious and features a large double bed. The six superior cabins are located on the lower deck and feature 2 bunk beds. Hence, the main deck has 1 cabin for either double or triple occupancy.
You can check the latest schedule & prices for this liveaboard here.

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Nautilus Under Sea On-board Facilities
The Under Sea has a massive salon/lounge which is adjacent to the equally spacious dining area. Indeed, there’s plenty of room the 17 guests and it was made to be cozy and feel like home. There are couches, cushions, a big screen television and a media library as well as books and board games.

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Furthermore, if you head outside, you will find a roomy sundeck and lounging areas as well. The sundeck is partially shaded so you can read or nap peacefully. Of course, you can use one of the loungers and enjoy the sun as well as the beautiful view of Mexico!
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Vessel Layout
The Under Sea is the newest addition to the Nautilus Explorer Fleet. Indeed, this means that the Nautilus Explorer liveaboard is the sistership of the Under Sea. If the Explorer was built in 2000, the Under Sea, which just wen through a full refit, doesn’t have much to envy. Hence, the Under Sea is smaller and offers a more personal and customizable experience.

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Diving with the Nautilus Under Sea
The dive deck of the Under Sea is massive. There is everything you need for your camera and personal gear. The set up is made so there are individual stations and plenty of space to roam around even in full gear. The access to the water is easy with the large platform and there’s always the professional team around to help!

If seeing a great white shark up close is what you always wanted, the Under Sea is going to the Guadalupe Island is the exact boat you need! Either way, there’s also amazing diving awaiting with the scuba diving team. Plus, the Socorro Islands are home to the large pacific mantas as well as many species of sharks and perhaps you’ll meet a humpback whale! Mexico is nothing bu short of option!
Price starts at 2,795$US for 6 days / 5 nights – Guadalupe Island
Socorro Expedition price starts at 2,895$US for 9 days / 8 nights
Where does this liveaboard dive boat go?
Check out the fabulous places where this dive boat travels to.
Note: some destinations may not be listed below, please enquire for more details.
Yucatán, Mexico
Mexico’s Yucatán offers outstanding reef diving, wall dives, drift dives and the largest underwater art museum in the world.
Mexico
Mexico offers divers choices, Great liveaboards and large marine life encounters in the west, great reefs and cenotes in the east
Baja California, Mexico
The Baja offers outstanding diving and is one of the best shark diving destinations for liveaboards.
- If you have been diving on board this liveaboard dive boat in Guadalupe Island & Mexico & Socorro Island, please share your review and let us know what you thought. Please post your comments in the review section below, by doing so you will help fellow divers to plan their next diving trip
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Other Liveaboard Reviews in Guadalupe Island & Mexico & Socorro Island
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MV Nautilus Belle Amie
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Quino El Guardian
The 25 meters liveaboard Quino El Guardian is taking divers to the pacific Mexico’s best scuba diving! Indeed, with the choices of the Socorro Islands, the Sea of Cortez and the Baja California, it sure won’t disappoint. Custom built in 1980, the Quino
Narval
The 35 meters Narval is a liveaboard operating on the Sea of Cortez, Mexico. Built in 1974, the Narval went through major renovation in 1992 and again in 2008, keeping up with the industry standards. The dive vessel is mostly available to be chartered
Southern Sport
The Southern Sport is a liveaboard operating in Mexico, precisely around the Guadalupe and Socorro Islands. The 35 meters vessel was renovated last in 2014 and is upgraded annually in order to maintain standards and great comfort level. . Boat Cabins
Rocio Del Mar
Rocio del Mar is a 27 meters liveaboard offering scuba diving cruises to the Pacific side of Mexico. Indeed, with itineraries including the Soccoro Islands, Baja California and the Sea of Cortes, the Rocio del Mar is sure to impress. . Boat Cabins
MV Valentina
In between Mexico’s rugged west coast the sunny shores of the Baja Peninsula – stretching 1000 miles south from Tijuana – lies the Sea of Cortez. Now a World Heritage Site, the Scuba diving here can be spectacular and challenging. Conditions variable.
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The Nautilus Explorer liveaboard was built and launched in Vancouver in 2000. This ship was custom-designed for Scuba divers to the highest possible level of comfort and safety with a layout that utilizes every square foot of available space. https://y
MV Sea Escape
The MV Sea Escape is a 33m aluminum mono-hulled liveaboard, which operates diving tours around the best of Mexico’s Pacific Diving Sites. It was built originally as a supply boat for the oil fields in the Gulf of Mexico. Later, she was converted into a
MV Islander
Operating out of San Diego, MV Islander liveaboard focuses exclusively on Mexico’s Guadalupe Island during Great White Shark season, running cage diving trips of 5 days / 5 nights duration. The Islander diving boat, was designed and built specifically













Very bad experience, No refund after the CoronaCrisis. The boat scheduled for the end of March never left the port and they kept my money. They only offered a 40% voucher for a next trip keepnig the previous trip.
Pathetic attitude
Please avoid !!
Hi Rafael! We are very sorry to hear about this situation. We, at Divezone, truly hope that somehow this situation will turn up to the better for you and we would just like to say thank you for sharing your review here and reading Divezone. This means a lot to us and for every diver that comes around to plan its next diving holiday!
Wishing you all the best, stay healthy!
Same problem here, they do not answer my mails asking for a refund. I was so expecting for this trip, We were coming from France but the airport closed and they said “Mexico is safe, come and dive” … they stole our money.
Hello Miss Calvo,
We, at Divezone, are very sorry to hear about this situation and we sincerely hope that somehow this situation will turn up for the better for you. That said, we would like to say thank you for sharing your review here and for reading Divezone. This means a lot to us and for every diver that comes around to plan its next diving holiday!
Wishing you all the best, stay healthy!