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Sea Hunter

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The fabulous Sea Hunter has served Cocos since 1995 & is now serving as the mother ship for humpback whale trips at the Silver Bank.  She's 115 feet & takes up to 20 guests in 10 cabins.


A word from Dom :  "The Sea Hunter, best known for her Cocos Island adventures, is one of the finest diving liveaboards anywhere. You'll hear us rave about this vessel again and again. She is now working part of the year with Conscious Breath Adventures at the Silver Bank in the Dominican Republic providing guests with one of the ultimate humpback whale trips in the world.  A marvelous, magical experience which I can't recommend highly enough !"  ......  Dominick Macan

On board Sea Hunter

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    2 upper deck DOUBLE/TWIN cabins

    queen bed & twin upper berth, desk, TV/DVD player & picture windows
    5 lower deck TWIN cabins
    3  with bunk style twin beds & 2 with adjacent twin beds + portholes
    3 lower deck DOUBLE/TWIN cabins
    queen bed with twin bed above & portholes
    All cabins offer a private bathroom, air-conditioning and storage space.

    whale watching & water access is from two 25′ (7.5m) long fiberglass boats

    each tender takes a maximum of 10 people
    each has a hard-top sun protector
    a dive ladder makes boarding easy after in-water encounter
    water temperature ranges from 72F -80F (22C-26C).

    non-divers are welcome

    full rebreather support
    tri-mix support with helium
    an assortment of bail-out & rebreather cylinders
    support for all types of totally closed-circuit rebreathers (CCR)
    (EG Biomarine & Buddy Inspiration units with Sofnolime CO₂)
    scrubber material & high-pressure oxygen


    accomodation, meals and non-alcoholic beverages

    3 to 4 dives per day
    tanks and weights
    nitrox fills
    transfers from & to a hotel in San Jose

    international airfares
    alcoholic beverages

    National Park Fee + possible fuel surcharge
    rebreather service & tanks  (divers need to bring their own rebreathers)
    scuba rental gear & 15 liter tanks
     DeepSee submersible (on-board certain trips) 
    satellite phone calls

Divinely designed for diving, photography & ease of living

The top deck (bridge deck) features 2 large suites as well as a 1000 square- foot sun deck which doubles as an exterior dining room.  You can make yourself at home reading in a lounge chair or catching some rays, or get your mouth watering while the chefs use this area to prepare sumptuous BBQs. The large open area here been actually been designed specifically for landing a helicopter during special expeditions.  The bow section of the Sea Hunter offers a spacious area for passengers to hang out, watch the dramatic sunsets and check out dolphins surfing the boat's bow wake. 

On the main deck, you'll find a cozy study with comfy seating, a library ... plus TV, VCR, DVD and a personal computer to allow guests to view and edit their video and digital photography.  Mid-ship on this deck is the warm and welcoming formal dining room and adjacent to that an enormous, bright and airy lounge. 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.

At the stern end of the main deck is the well-designed dive deck with fantastic camera storage area and super-sized swim platform ... and even a private dryer for your towels and swim suits.

You'll never go hungry (or thirsty)

The three daily meals are a delicious international mix with a local flair.  Breakfast (cooked to order), hearty buffet lunch and dinners are served daily in addition to fresh mid-morning and mid-afternoon snacks.  Beverages (including beer and wine) are complimentary while onboard.  Distilled spirits are not provided but guests are welcome to bring aboard their own to enjoy.

If you have any special dietary requirements, please advise us as soon as possible.  Vegetarian and vegan meals are not a problem with prior notice.  However, certain special dietary and beverage requests may not be available on a consistent basis local availability of supplies so advanced planning is required.

Deck Plan  ... Technical Specifications

View the deck & cabin layout, the yacht specifications and the equipment & safety features included on the Sea Hunter dive liveaboard.                .... open



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Length: 115 ft / 36 m
Beam: 26 ft / 8.1 m
Draft: 8 ft / 2.5 m
Displacement: 250 tons
Construction: welded steel with teak work deck
Engines: twin GM 16V92 / 1200 total hp
Cruising Speed: 9.5 knots
Maximum Speed: 10 knots
Range: 3,500 nautical miles
Endurance: 30 days (limited by food supply)
Tenders: Two 24 ft heavy duty fiberglass dive boats
17 ft rigid bottom inflatable
Portable Generators: GM 6-71 75kw John Deere 105kw Portable Generator 5kw
Available Voltage: 110/220 VAC 60 Hz 3-phase 208 VAC 12 VDC
Fuel Tank: 20,000 US gallons (78 tons)
Water Tank: 15,000 gallons (60 tons) 1,800 gallons/day water maker

Safety: Two 25 person life-rafts.
Complete boat, crew and passenger safety gear.
Firefighting system throughout vessel.
Extensive first aid kit.

Diving Amenities: 20 personal diver locator systems.
Scuba Compressors: 2 HP compressors
1 nitrox generator
Scuba Tanks: 30 aluminum 80 cu/ft tanks
2640 cu/ft high-pressure storage bank
Technical Diving: Full oxygen, nitrox and rebreather service.
Guests must bring their own rebreathers.

3 GPS (Global Positioning Systems)
2 Radars (48 and 32 mile)
2 recording fathometers
Radio Direction Finder SIMRAD
Auto pilot
2 VHF radios
3 handheld VHF radios,
SSB radio (SEA 222)
Multi-system televisions, CD stereo and DVD player.
Desktop Computer
Starlit Telephone

12-ton deck mounted crane (55-ft reach).
33 ft by 24 ft (10.3m by 7.4 m) work deck space.
44 ft by 24-ft sundeck (1000 sq. ft.) and lounge chairs.
Fully equipped workshop with arc welding and oxy-acetylene cutting equipment/supplies

20 personal dive gear boxes, 20 personal camera lockers with stabilized and surge protected 110v outlets.
Air conditioning throughout the vessel


Read about Diving With Whales

Sample itinerary for your Silver Banks, Dominican Republic, swim with humpbacks odyssey.  This itinerary is subject to change based on weather, sea condition and local government regulation    .... open



5pm Guests board vessel at Ocean World Marina, Cofresi, Dominican Republic; cabin assignments
6pm – 7pm Vessel Safety and Operations orientation; required paperwork.
7pm – ? Group introductions, dinner
11pm Vessel departs Ocean World Marina


9am (approx.) Vessel arrives on the Silver Bank, moors
9am – 12am  Tender preparations; snorkeling and humpback whale orientations
12pm – 1pm Lunch
1pm – 5:30pm  Whale excursion in tenders
5:45pm – 7pm Sundowner celebration
7pm – 8:30pm Dinner
8:30pm – ? Evening activity (discussion, lecture, slideshow, etc.)

Monday – Thursday
7am Breakfast
8:30am – 11:30am Whale excursion in tenders
Noon Lunch
1:30pm – 5:30pm Whale excursion in tenders
5:45pm – 7pm Sundowner celebration
7pm – 8:30pm Dinner
8:30pm – ? Evening activity (discussion, lecture, slideshow, etc.)

7am Breakfast
7:30am Vessel departs Silver Bank anchorage
4:30pm (approx.) Vessel arrives Ocean World Marina
6 pm – ? Optional video/photo presentation of the week’s events.
Dinner ashore (not included in weekly rate)

7am Continental Breakfast
8am Guests disembark vessel

Travel & cruise logistics

Port of Embarkation: Cofresi, Puerto Plata, Dominican Republic

Sea Hunter docks at Ocean World Marina in the Cofresi beach area, a few miles west of Puerto Plata.  The closest international airport is Gregorio Luperon International Airport (airport code POP) with direct flights from Miami, New York, Charlotte and Boston as well as several European cities. It's about 30 minutes by taxi, costing around $45-50 USD.  The M/V Sea Hunter departs each Saturday evening during the ten week winter season. The season runs from late January until early April. Guests board the vessel each Saturday at 5:00pm. It’s a good idea to arrive on the island at least a day or so before departure. 

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