Sea Hunter Liveaboard, Costa Rica

Name: Cocos Island Expedition (Puntarenas - Puntarenas)
Start: 2026-10-20
End: 2026-10-30
Location: Costa Rica

9.0 Superb

Nitrox available
Free Nitrox
En-Suite bathrooms
Aircon Cabins
Warm Water Showers

from $ 527 / day Check dates

“However, we saw hammerhead sharks and the famous school of hammerhead sharks on the Alcyone site at each dive.”
JACQUES D, France

Highlights

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.

Choose your departure date

Date

Itinerary

Price

Select

29 May

11 Days / 10 Nights

$ 7,250

FULL

11 Jun

12 Days / 11 Nights

Valid for a limited time only. T&Cs apply. Fuel surcharge is US$55 per guest, to be paid onboard with cash or credit card.

~~$ 7,940~~ $ 6,352 Save 20% -20%

FULL

25 Jun

11 Days / 10 Nights

Valid for a limited time only. T&Cs apply.

~~$ 7,250~~ $ 5,800 Save 20% -20%

FULL

08 Jul

11 Days / 10 Nights

$ 7,250

FULL

22 Jul

15 Days / 14 Nights

Valid for a limited time only. T&Cs apply.

~~$ 10,010~~ $ 8,008 Save 20% -20%

FULL

08 Aug

15 Days / 14 Nights

Valid for a limited time only. T&Cs apply.

~~$ 10,010~~ $ 8,008 Save 20% -20%

FULL

29 Aug

11 Days / 10 Nights

$ 7,250

FULL

11 Sep

11 Days / 10 Nights

$ 7,250

FULL

24 Sep

11 Days / 10 Nights

$ 7,250

FULL

06 Oct

12 Days / 11 Nights

$ 7,940

FULL

20 Oct

11 Days / 10 Nights

$ 7,250

FULL

02 Nov

11 Days / 10 Nights

$ 7,250

FULL

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

Required Extras: Dive Insurance, Fuel Surcharge (55-200 USD per trip), National Park Fees (554-870 USD per trip), Local Transfers (100 USD per trip).

Optional Extras: Gratuities, Wine with Dinner, Night Dives (50-56 USD), Nitrox Course (210 USD), Private Dive Guide (2,000-2,800 USD per trip), Rental Gear, Scuba Diving Courses (350-425 USD), WiFi internet (50 USD).

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

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

Food & Drinks

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

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.

Diving

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

Languages Spoken

The crew speaks English and Spanish.

Gear Rental

Equipment is available for rent on this boat. Please provide your rental needs on the booking form. If the rental gear is not included in the price, you will need to pay for it on board the boat. Show prices

Drawings & Vessel Layouts

Cabin Types

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

9.0 Superb

Vessel

8.6
Crew

8.8
Food

9.5
Diving

9.5
Value

8.7

9.2 Superb
Nicolas D
France

Amazing trip in Cocos Island!
This trip on Cocos Island was amazing: hundreds of hammersharks, a whale sharks, dolphins and many galapagos & silver tip sharks. I think our 2 divemasters (Juan Manuel and Luis) were amazing: probably among the best in the world! They know the divesites very very well since they are very experienced in Cocos Island, they can anticipate where to go depending on the conditions (current, swell...) and the sharks behaviour. Many thanks to them! I think it was necessary to have at least 2 divemasters for a very big group of 10 divers. One in the front to lead the dive and one at the back to try to spot animals and to make sure nobody is lost in the blue. The general atmosphere on the boat was friendly and very fun. The food was good and the room very nice, with a good level of service. I strongly recommend Sea Hunter!
Recommended for
Divemasters. Hammersharks, Whale sharks, Dolphins and all the other sharks. Fun and friendly atmosphere.
09 Nov, 2025

9.6 Exceptional
Peter Anthony Z
United States

Great way to celebrate retirement
The experience of diving with some of most wonderful creatures of ocean - The new dive friends we made during this 10 day adventure - The many great memories we that will bring us back to the Sea Hunter and Cocos Inland
Recommended for
The fantastic crew - The diving - The knowledge and experience of the dive masters
09 Nov, 2020

8.8 Fabulous
eric F
France

INCREDIBLE ENCOUNTER WITH THE WILD WORLD
Great schools of hammerhead sharksHuge Whale Shark Deepsee sub-husband descent
Recommended for
requins - requins -requins
08 Aug, 2022

Translated from French

8.4 Very good
Richard S
United States

cocos great
boat is very safe and clean crew were great water was a little warmer than normal and therefore slightly less large pelagic but still amazing trip 12 foot tiger shark
Recommended for
sharks sharks sharks
16 Aug, 2023

9.2 Superb
Daniel G
Germany

The best diving experience that you can find !!!
The dives at Cocos Island was amazing! We spotted hundreds of Hammerhead Sharks, Tiger Shark, Galapagos Shark, Manta Ray, Eagle Ray and big School of different fish. Amazing experience:) The crew was so great and the food was delicious. We had a great time and will come back :)!
Recommended for
- Amazing Dives - Fantastic Crew - Delicious Food
08 Sep, 2021

10 Exceptional
Meryl N
Switzerland

Awesome!
Just diving there everyday in the blue with such a marine’s life and being in the middle of the ocean with no noise, no hurry... it made already 2018 awesome!
Recommended for
The dives, the beauty of the island and the kindness of the crew
21 Jan, 2018

10 Exceptional
Natsumi U
Japan

A great trip!
Not the high season and El Nino this year, but guides did wonderful jobs to find hummer heads and many other small stuff like frog fish.
Recommended for
Guides, Crew service, diving experience.
28 Mar, 2019

9.6 Exceptional
Dan S
United States

Shark Heaven off Cocos
Every dive was very good, but the first dive we saw the Whale Shark. On several of the dives, the Barber fish cleaning stations were so active it was a constant flow of hammerheads.
Recommended for
The dive panga crew was excellent - Roberto, Juan Manuel and Balin are some of the best we have dove with. Great shark experience; whale shark, lots of hammerheads and white tips, silkies, Galapagos and oceanic blackcaps.
29 Jun, 2024

7.6 Good
Isabelle E
France

10 days at the end of the world.
Roundtrip navigation between Puntarenas and Coco's, dives, relaxing moments at sunset, happy hour, BBQ.
Recommended for
Very good team; perfect organization; varied and balanced meals.
03 Apr, 2019

Translated from French

9.2 Superb
Cheryl H
United Kingdom

Diving at its very best.
Wonderful, best shark diving in the world.
Recommended for
Best diving I've ever experienced. Hammerheads, galapagos, tiger, silkies, silvertips, mantas, dolphins. Warm and clear.
12 Aug, 2024

43 reviews

9.0 Superb
43 Verified Reviews

Sort reviews by:

10 Exceptional
Tammy L
Singapore

Excellent crew, food, comfort
Hammerheads, Carlos, our Cruise Director, has the patience of a saint. He fixed my faulty equipment onboard the panga twice, immediately before the dives so I did not miss any dives. Deeply appreciated his cool, calm and humourous attitude.
Recommended for
Helpful staff, food variety, experienced guides
18 Jan, 2019

8.4 Very good
RUI W
China

Dive Dive Dive!
Dive was great. I saw what I wanted to see, including a whale shark. Crew was very helpful. Dive staff were very professhional. Maybe because it was full moon, I felt like the view of Cocos island was very special (and beautiful!) The only thing I can complain is engine nosie is too loud.
Recommended for
Diving. View. Crew.
06 Sep, 2025

10 Exceptional
Ainhoa U
Spain

Unforgettable
Dives in Alcyone and Dirty Rock, the friendliness and friendliness of the crew, the comfort of the cabin
Recommended for
Dives, Crew & Cruise Director
04 Sep, 2021

Translated from Spanish

8.0 Very good
Fabian H
Germany

Awesome
Everything;)
Recommended for
The Crew, The People, the Dives
13 Dec, 2021

10 Exceptional
Janice S
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.
29 Jan, 2022

9.6 Exceptional
Richard W
United Kingdom

"Pura Vida!" The 'must dive' Cocos experience.
Swimming with a wall of hammerhead sharks, drifting with thousands of Jack's, and diving with knowledgeable experts and good diving companions. These memories will stay with me for ever. It did rain for most of the trip, but that did not spoil it for me, even with reduced visibility by Cocos standards, it was amazing to a British diver. This is not a trip for the inexperienced. There was some challenging currents and waves, but our trip was in the rainy season. Everything was very efficiently run and all were extremely helpful and friendly. To really seal an excellent trip, my clothes were washed, dried and neatly folded just before we returned. Luxury indeed; worth every penny and hopefully I will return to Cocos, on Sea Hunter but in the dry season.
Recommended for
Expertise of ALl staff, safety management, variety of dives.
18 Oct, 2023

9.2 Superb
Lisa M
Sweden

A must-do expedition for experienced divers
Fantastic, the crew really go out of their way to make their guests feel special and appreciated. It is extremely expensive, but considering how remote the location is and how comfortable the boat is, it's understandable. Only recommended for hard-core experienced divers as the crossing to Cocos is long and bumpy. I loved every minute of it and was especially surprised how beautiful the cabins are (hand-painted individually). The general comfort level was a lot higher than I had expected and if I could afford it I'd definitely go back again.
Recommended for
Diving, cabins, crew
06 Dec, 2015

9.2 Superb
Yannick P
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
12 Jun, 2019

9.6 Exceptional
Serge T
Canada

Cocos islands, a must-see for sharks
Shark dives
Recommended for
Attentive and helpful crew. Professional and attentive dive master. Well maintained boat.
29 Nov, 2025

8.8 Fabulous
pascaline I
Austria

Everything was great, could come back!
Diving with dolphins
Recommended for
Hammerhaie, Tigerhaie, Delphine
13 Dec, 2021

Translated from German

10 Exceptional
Paul B
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
27 Dec, 2017

10 Exceptional
Silvia S
Switzerland

Mindblowing. Every day was amazing.
Seeing different shark species. Some of them from quite close.
Recommended for
Great diving. Friendly crew. Good boat and food.
06 Oct, 2023

9.6 Exceptional
Fiona C
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
29 Jan, 2022

10 Exceptional
Fernando J
Spain

If I can, I'll come back
The sighting of two schools of hammerhead sharks on the last day of dives.
Recommended for
The Crew, the Passage and Cocos Island
10 Aug, 2023

9.6 Exceptional
Lena L
Norway

Cocos - a dream destination repeated
This is my 2nd trip to Cocos seeing it was so mindblowing the first time. I was with a different operator last time, and in low season (apparently, but still incredible then as well). I must commend Seahunter for a really top notch operation, well laid out skiffs with room to move about, clean and extremely well kept boat and amazing food (healthy and varied). The lack of 1 star is due only due to rather japanese style hard matresses in some cabins...And I can normally sleep anywhere The crew also genuinly seemed to care we had a good time. Very friendly, engaged and interested. I will definitly return to this operator. Now the diving: hampered by really bad viz first part of the 8 days (This was a 10 day trip), but luckily it picked up. Rainy season really means RAINY, torrential rain throughout. No need for suntan lotion. Amazing big animal encounters, so if you like action diving with current, blue, and big game, this is for you. The island itself is also stunning, and just being so far away from the world, with Jurrasic park scenery, no mobil reception, letting it all hang out in tracky bottoms and watching the birds and the occasional thunderstorms...Well, lets say skip two trips to the Carribean and and save up to do this instead.It will blow your mind! As small end note: Its not easy diving though, so be prepared to be a bit bruised and battered. Very much worth the effort though, whalesharks, hammers a plenty, tigers, schools of trevally so big it must have been in the thousands...marbel rays falling on you from every angle...just magic!
Recommended for
Wildlife encounters, really well run and well kept boat, amazing fresh food!
13 Jul, 2018

9.6 Exceptional
Frédéric B
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
27 May, 2019

9.6 Exceptional
Craig R
United States

I had a great trip.
Diving
Recommended for
Diving, Diving, Diving
05 Aug, 2022

8.0 Very good
alain C
France

to be done, at least, once in your life as a diver
The schools of hammerheads, the huge whale shark and the descent to 300 meters with the Deepsee submarine
Recommended for
Wholesale pelagic richness of the place, organization and safety of the dives, seriousness and competence of the guides
14 Aug, 2022

10 Exceptional
Christian W
Germany

aow
Whale shark MantaFrog fish
Recommended for
the staff, the dives, the boat
05 Aug, 2022

8.0 Very good
Roman O
United States

Very nice dive trip.
Many things are thought out and provided for in advance. Daily briefings, discussion with participants of past dives and coordination of dives for the next day. Moving the dive site if conditions do not allow it to be done safely. I'm a wonderful cruise director (Yen). I felt confident even though I had returned to diving after more than three years off.
Recommended for
Interesting gueses. Perfect cruise director (Yen). Friendly cruise team.
26 Dec, 2025