Sea Hunter Liveaboard, Costa Rica



  • Being a former commercial diving support boat, the Sea Hunter is superbly equipped for smooth sailing towards all types of dive sites.
  • Many kinds of dives on offer, ranging from vertical walls, drifts, pinnacles, as well as incredible marine life, including Hammerhead sharks, Sailfish, and Whale sharks.
  • The Sea Hunter also includes a variety of land trips to explore the stunning Costa Rican Forest

The MV Sea Hunter Liveaboard is a purpose built vessel offering year-round diving in Cocos Island. She is an incredibly stable and robust vessel and also has 'zero speed stabilisers' which are lowered into the water when she is moored to give added stability, making the M/V Sea Hunter an ideal choice for diving in Costa Rica. She has 8 standard cabins located on the lower deck with the choice of twin or double beds, which are air-conditioned, carpeted throughout and come with en-suite bathrooms. On the upper deck are 2 double suites with panoramic views, en-suite bathrooms, AC, carpet and each suite has hand-painted artwork by Carlos Hiller on the walls.

Social areas aboard the MV Sea Hunter include the lounge fitted with chairs, long, padded seating areas for sitting, DVDs, videos, games and more, as well as the mini-bar. The dining room has five, 4-person booths arranged in two rows, and is where the menu of a combination of American and local Costa Rican cuisine is served, including fresh tropical fruits, salads, fish, chicken, beef prepared in a variety of ways. There is also a study, which provides a relaxed atmosphere and extensive library, as well as a video and digital photography editing suite.

MV Sea Hunter itineraries in Costa Rica are 10 or 11-nights long giving divers the opportunity to really experience Cocos Island to its fullest. Due to the remote location of Cocos Island, the diving is pristine, marine life is abundant and divers can expect to see schooling white tip reef sharks, schooling hammerhead, dolphins, manta rays, sailfish and much more. Diver facilities have been well designed to ensure maximum comfort. Each diver is allocated individual gear storage and under-seat storage, as well as personal camera lockers and free Nitrox is included for certified divers.

Book your Sea Hunter liveaboard easily online today.

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Included: VAT, Alcoholic Beverages, Drinking Water, Soft drinks, Tea & Coffee, Full-Board Meal Plan (All meals), Snacks, Diving Package, Nitrox, Cabin Towels, Complimentary Toiletries, Deck Towels, Laundry / Pressing Services.

Required Extras: Fuel Surcharge (80-200 USD per trip), National Park Fees (554-633 USD per trip), Local Transfers (100 USD per trip).

Optional Extras: Gratuities, Airport Transfer (56 USD per trip), Wine with Dinner, Nitrox Course (210 USD), Private Dive Guide, Rental Gear.

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.

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Boat features

  • Laundry Service
  • Camera Station
  • Daily housekeeping
  • Audio & video entertainment
  • Air Conditioned saloon
  • Aircon Cabins
  • Sun Deck
  • Indoor Saloon
  • Warm Water Showers
  • Outdoor Dining
  • Custom built for diving
  • Charging stations
  • En-Suite bathrooms
  • Non-Smoking Rooms
  • Outside Showers
  • Seaview Cabins
  • Separate Rinse for u/w Camera
  • Dedicated Local & International Crew
  • Leisure Deck
  • BBQ Area
  • Available for Charter

Food & Drinks

  • Western Food
  • Vegetarian Options
  • Buffet style
  • Beer available
  • Snacks All Day
  • Vegan Options
  • Fine Wines Selection
  • Free Soft Drinks
  • Wine Available

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.


  • DIN Adaptors
  • Nitrox available
  • Tech diving
  • Rebreather Support
  • Rinse Hoses
  • Dive deck
  • Tenders for diving
  • Sidemount Diving
  • Shaded Diving Area
  • Free Nitrox

The crew speaks English and Spanish.

Gear Rental

There is diving gear available on this boat. Please provide your rental needs on the booking form. See below for further details on inclusions and pricing. Show prices.

Drawings & Vessel Layouts

#deckplan floorplan

Boat Specifications

  • Year built 1994
  • Length 115 ft
  • Beam 26 ft
  • Top speed 10 knots
  • Cruising speed 9.5 knots
  • Engines twin GM 16V92 / 1200 total hp
  • Max guests 20
  • Number of cabins 10
  • Number of bathrooms 10
  • Tenders Two 24 ft heavy duty fiberglass dive boats 17 ft rigid bottom inflatable

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
  • First Aid Kits
  • Satellite & mobile phones
  • Search light
  • Crew trained in first aid
  • Emergency flares

Sea Hunter Reviews

  • 9.3 Superb
  • 33 Verified Reviews
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 10 Exceptional
  • John L
  • Canada Canada
Outstanding dive trip

Even with El Niño negatively affecting the dive environment, we still encountered hammerheads, Galapagos and Black Tip sharks. Not to mention the abundance of fish, reef sharks, and rays. The crew went out of their way to make our trip as comfortable, safe, and successful as possible.

Recommended for
1) The dive masters and crew are the most professional I’ve ever experienced. 2) The Sea Hunter is very comfortable with great food. 3) the diving was exceptional.
  • 9.2 Superb
  • kristoffer G
  • Denmark Denmark
Awesome trip with sharks left and right even though visibility was poor


Recommended for
sharks everywhere, great food, friendly crew
  • 9.6 Exceptional
  • Fiona C
  • Canada Canada
All around amazing Liveaboard

Mind-blowing dives with schooling sharks and fish, a world-class crew - all master of service within their disciplines, personalized care for each of the guests, a clean and comfortable boat with so many little touches (e.g. laundry, beer, nightly events), all with the backdrop of a beautiful and untouched paradise island

Recommended for
Unbelievable dives, hospitality/service, dive guide knowledge and professionalism
  • 10 Exceptional
  • Janice S
  • Canada Canada
The best trip for me on planet earth.

Schools of hammerheads; all the different rays: manta, mobula, bat and marble; jack school; a trip in the submersible to 1000’ but also, all of the other fish, big and small…I loved them all.

Recommended for
Incredible diving, fantastic crew and fellow divers.
  • 9.2 Superb
  • Yannick P
  • Belgium Belgium
great trip in Cocos

We had really great dives at Cocos, full of hammerheads and other species ! The skiff drivers and dive instructors really try to give you a great experience - short stops on sea after spotting wildlife or even stops to see different places of the islands (waterfalls, etc - stayed on the boat) The boat is very nicely designed with a place for everything. All you need is onboard. The crew was amazing, very helpful, always in a good mood. Food was great too : healthy and different everyday !

Recommended for
Diving in general, Subsee dive, Food & crew
  • 9.6 Exceptional
  • Frédéric B
  • France France
Incredible experience

The diving was great, and this isolated island is fascinating. We were the only boat on Cocos ! The crew is really doing his best to make the trip unforgettable

Recommended for
The diving, the crew, the island
  • 10 Exceptional
  • Paul B
  • France France
Best diving on the best boat

Seeing many hammerheads, Galapagos and white tip sharks. Also seeing a tiger shark and a silky shark. The boat was amazing and the crew was the best (Manuel, cruise director is outstanding). Food is best in class !!

Recommended for
Diving, food, crew
  • 8.0 Very good
  • alain C
  • France France
à faire, au moins, une fois dans sa vie de plongeur

les bancs de marteaux, l'énorme requin baleine et la descente à 300 mètres avec le sous-marin deepsee

Recommended for
richesse en gros pélagique du lieu, organisation et sécurité des plongées, sérieux et compétence des guides
  • 8.8 Fabulous
  • pascaline I
  • Austria Austria
es hat alles super gepasst, könnte wiederkommen!

Tauchgang mit Delphinen

Recommended for
Hammerhaie, Tigerhaie, Delphine
  • 7.6 Good
  • Isabelle E
  • France France
10j au bout du monde .

La navigation A/R entre Puntarenas et Coco’s , les plongées , les moments de détente au coucher du soleil, l’happy hour ,le BBQ .

Recommended for
Très bonne équipe ; organisation parfaite ; repas variés et équilibrés .