Nautilus Explorer CR

Nautilus Explorer is the flagship of the fleet featuring an all new super-large dive deck and water level platform combined with picture windows around the main salon and separate dining room. We love the Explorer and she looks fantastic with her recent stretch to 132 feet in length, new air conditioning and interior updates.

The Nautilus Explorer has many well-designed social areas. There are two upper-floor sun decks and a hot tub deck where guests can relax with a glass of wine or frosty beer under the evening stars. The main salon is located in front of the dive deck and has large panoramic windows, and it is furnished with couches, a dedicated PC and Mac computer for video editing, and a 42-inch plasma TV. Onboard dining consists of freshly made dishes, including homemade bread, pastries, and soups combining North American, European, and Mexican flavors.

Nautilus Explorer features 13 cabins, ranging from a cost-effective mixed-gender triple occupancy stateroom to a luxurious premium suite. On the lower deck are 8 twin/double cabins and 1 triple cabin. The hot tub deck has 3 superior suites and the premium suite, which features a separate lounge and floor-to-ceiling picture window. All cabins are equipped with individually controlled AC and private en-suite bathrooms.


Launched in 2000

Lengthened to 132 feet in 2018

Features million-dollar views views

Views in dining room and lounge


ISM safety certified

13 ensuite staterooms and suites

10 crew

Internet access and satellite phone

High capacity water makers

Freshwater hot tub

Air fills, nitrox, rebreather friendly.

Fully-stocked extensive bar (single malts, micro brews, a great selection of wine)

Cocos Island Costa Rica – Island of the Sharks - 11 days / 10 nights

Join us this summer for an unforgettable adventure to Cocos, the Island of the Sharks. This 6,000-acre UNESCO World Heritage site is the only island with a tropical rainforest in the eastern Pacific. It holds great fascination for divers, as it serves as the first landmark encountered by the north equatorial countercurrent and acts as a confluence point for marine currents. This unique combination creates the perfect environment for large migratory pelagic species, including hammerhead and tiger sharks, as well as all the other critters that Cocos is famous for.

The diving will be led by our Captain Beto, formerly of the Okeanos Aggressor, who boasts 29 years of experience. He has personally hand-picked a crew of Cocos veterans to ensure an exceptional experience. Our trips take place during peak season when the density of hammerhead sharks is at its highest, giving you the best chance to encounter whale sharks, humpback whales, and much more.

Update – May 11th: We have gained permission from the Costa Rican authorities to use our 132-foot flagship, the Nautilus Explorer, on our Cocos Island and near-coastal ocean and rainforest adventures. Our beautiful ocean stabilized Explorer features 4 levels of accommodation, huge back deck and camera tables, separate dining room and salon with million-dollar views and of course a fresh water hot tub.

Special Combo Trip - Cocos, Canos & Drakes Bay - 13 days / 12 nights

The best of 2 awesome adventures. 7 dive days at Cocos Island of the Sharks + 2 days of diving and adventuring around Drake Bay and Caño Island including going ashore in the tropical rainforest with our naturalist.

  • Contact us for dates & rates.

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Two Adventures in One Trip!
Dive Cocos Shark Action & Canos/Drakes Bay Tropical Fun
New Trip on Sale - from $4995 (regularly $6250)
Sep 14-26, 2023