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Sea Hunter is a professional dive yatch run by Undersea Hunter Group, offering a regular 11D/10N dive liveaboard trip in the Cocos Island. It can accommodate up to 20 guests.

Date 11/12/26 to 21/12/26
Duration 10 nights
Boat Sea Hunter
Destination Costa Rica (Cocos Island)
Departure Puntarenas
Arrival Puntarenas
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Description

Boat

Sea Hunter is the gold standard for all other dive liveaboards, it's a superbly stable and robust craft, formerly a commercial dive-support vessel, built to serve the oil industry in the Gulf of Mexico long time ago. After Undersea Hunter Group bought it in 1994, it went through eight months of extensive redesign and renovation, turned the boat into the striking vessel it is today, combines the large platform, functionality and powerful machinery of a workboat with the comfortable and relaxed interior of a modern yacht.

Sea Hunter is a 36 meters long, 8.1 meters wide welded steel vessel, specifically designed and built for long-range expeditions to destinations like Cocos and Malpalo islands. This spacious boat is everything that a serious diver or photographer could wish for: individual gear storage, private camera/strobe storage shelves with 110 & 220-volt AC power, zero-speed stabilizers and even a private washer & dryer for client’s towels and bathing suits.

On the main deck, the lounge is ample and comfortable with chairs and long, padded seating areas for sitting, reclining and even dozing off. Aside from the always fascinating socializing with your fellow adventurers, there is also a variety of nightly entertainment available aboard. This includes slide shows, DVDs, videos, games and more. Please feel free to bring along your own favorites. The refrigerator is constantly refreshed and brimming with soft drinks, beer and ice for your pleasure and something to munch on is always within reach.

The dining room consists of five, 4-person booths arranged in two rows, cozy enough even to allow conversation between booths. The menu aboard is a soulful combination of American and local Costa Rican cuisine. Meals are varied, abundant and nutritionally well-balanced. There are fresh tropical fruits, salads, fish, chicken, beef, and much more, all prepared in a wide variety of ways. Our guests continually laud our chefs' creativity in turning out delicious and memorable meals at sea. Please let us know if you have any special dietary needs or requests.

There is another library room offer comfortable seating and a library that provides a relaxed and private ambience. And also a TV, VCR, DVD and personal computer to allow guests to view and edit their video and digital photography.

This 1000 square foot sundeck is truly multi-use. Make yourself at home reading in a lounge chair, catching some rays or watching a sunset. Our chefs use this area for sumptuous BBQs with dancing under the stars. Its large open area has actually been designed specifically for landing a helicopter during special expeditions.

Diver facilities are extremely well-designed with segregated, individual gear storage provided for each diver. This includes under-seat storage, a large cubbyhole with electric outlets for charging as well as easy access to protected areas for even the largest camera housings and lights. Besides, there are 20 personal camera lockers in the camera room with numerous 110 & 220 volt outlets for charging batteries, strobes and other electronics.


Cabin

Sea Hunter has 10 comfortable guest staterooms, accommodating up to 20 guests per trip:

All cabins have air conditioning climate controls, ensuite bathroom, shelves, drawers and hanging hooks, a desk and chair,110-volt outlets, a satellite telephone for international calls, a flat screen TV with DVD player.

1 Owners Cabin :
Located on the upper deck, comes with a queen size double bed, large cabin space and seaview. windows.

1 Upper Double Suite :
Located on the upper deck, comes with a queen size double bed, large cabin space and seaview windows.

2 Deluxe Twin Cabins :
Located on the lower deck, each cabin comes with two twin beds side by side, portholes.

3 Deluxe Double Cabins :
Located on the lower deck, each cabin comes with a queen size double bed, portholes.

3 Deluxe Bunk Cabins :
Located on the lower deck, each cabin comes with two single beds in bunk style, portholes.


Diving

  • Generally 3 dives per day + at least 3 night dives per trip.

  • No dive provided on the day of arrival and departure.

  • All diving will provide experienced guide to lead the dive.

  • Supports all types of totally closed-circuit rebreathers (CCR)

  • Offer Tri-mix support with helium and other Tec dive support


Other Informations

  • Nitrox:Available with additional charge
  • 15L Tanks:Available with additional charge
  • REBREATHER Dive:Available with additional charge
  • Technical Dive:Available with additional cost
  • SUBMERSIBLE Dive:Available with additional cost
  • Dive Equipment Rental:Available with additional charge
  • Dive insurance:Divers travel aboard must have valid dive insurance
  • Wi-Fi Internet :Not available at the moment
  • Laundry Service:Not available at the moment
  • Massage Service:Not available at the moment
  • Payment on board:By cash (USD) or credit card
  • Crew Number:14, include 2 dive guides

Cabins & prices

Included

  • Transfers from airport and/or hotel to the yacht
  • Marine park fees & Port fees
  • Fuel surcharge
  • Full-board meal plan (including snacks)
  • Dinner ashore the night before disembarkation
  • Soft drinks
  • Diving activity (incl. tanks, weights, weight belts)
  • Dive guide service
  • Nitrox fills
  • Land excursions and activities throughout the trip
  • Boat accident insurance
  • Cabin cleaning service

Not included

  • Domestic flights in destination country
  • Marine park fees & Port fees
  • Complimentary alcoholic beverage with dinner
  • Dive equipment rentals
  • Larger tank (15 L)
  • Nitrox fills
  • Dive courses on board
  • Dive insurance (mandatory requirement)
  • Travel insurance (trip cancellation insurance)
  • Crew gratuity

More

Destinations Costa Rica (Cocos Island)
Facilities Nitrox support, Rebreather Friendly, Tech Friendly, Submersible, Watersport equipment, Camera Station
Languages spoken English, Spanish

Photos

Frequently Asked Questions

Pricing for Sea Hunter varies by cabin type, route and duration. Most trips start from $2,401 per person. Live prices and current availability are listed on the Schedules tab. Contact our dive team for a custom quote or private charter pricing.
Standard inclusions: airport and hotel transfers, full-board meals, soft drinks, diving (tanks, weights, weight belts), dive guide service, land excursions, cabin towels and toiletries, Wi-Fi and boat accident insurance. Excludes: international and domestic flights, marine park fees, fuel surcharge, dive and travel insurance, equipment rental, nitrox fills, alcohol, gratuity.
Costa Rica (Cocos Island) offers year-round diving with two distinct seasons. Manta and warmer water characterise the wet season, while larger pelagics and cooler water mark the dry season. Browse upcoming departures by month on the Schedules tab to pick the best window for your travel dates.
Most Sea Hunter routes require Open Water certification with at least 50 logged dives. Some sites with strong currents require Advanced Open Water. Check the Useful Information tab on this page for destination-specific requirements.
Sea Hunter hosts up to 16 divers per departure. The small group ratio means personalised service, flexible dive scheduling and minimal waiting between dives.
The crew speaks English, Spanish. Dive briefings are given in English with translation available on request. International dive guides accompany selected departures.
Browse live departures on the Schedules tab. Each row links to the booking page with date, route and confirmed pricing. For private charters or custom itineraries, contact the Dive and Cruise dive team via the form below. No booking fees.
Full refund up to 90 days before departure, sliding scale thereafter. Travel insurance covering trip cancellation is strongly recommended and mandatory for some destinations. See the booking terms for full details.
Yes. Valid dive insurance covering emergency evacuation, hyperbaric treatment and diving accidents is mandatory on all Sea Hunter departures. We also recommend travel insurance with trip cancellation coverage. Proof of insurance is checked at embarkation.
Sea Hunter operates across Costa Rica (Cocos Island). Expect schooling pelagics, reef sharks, manta rays, sea turtles, vibrant coral walls and macro critters. Seasonal highlights shift by month and region - check the destination page for the current conditions.
Nitrox is available on Sea Hunter for an additional charge. Larger 15L tanks, rebreather support and tech diving can be arranged on request. Notify our dive team at the time of booking so we can confirm availability and add the surcharge.
Most Costa Rica (Cocos Island) liveaboard trips connect via a regional hub. We recommend arriving 1 day before embarkation to recover from travel and to clear any park or transit fees. Airport transfers are included in the trip price.
This specific Sea Hunter departure runs from Dec 11 - Dec 21, 2026. Embarkation is in the afternoon of day 1, disembarkation in the morning of the final day. Plan international flights to arrive 1 day early and depart 1 day late.
This package includes 10 nights aboard Sea Hunter. The full itinerary covers up to 20 dives across multiple sites. Check the Description tab for the day-by-day dive plan and the Schedules tab for the exact route.
Cabin options on this Sea Hunter departure include: Classic Twin, Twin/Double, Premium Double, Premium Twin/Double. Each cabin has ensuite bathroom, air conditioning, storage and US-plug outlets. Live availability and per-person pricing by cabin are shown on the booking page.

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