Argo Liveaboard, Costa Rica



  • Dive the remote Cocos Island which can only be reached via liveaboard
  • Luxury yacht offering complete comfort
  • Hop on the on board DeepSee submersible for a 200m deep dive

The Argo liveaboard was completely refitted in 2008 to offer guests a luxury dive experience in Cocos Island of Costa Rica. Nine guest cabins cater for 18 guests on board. Cabins feature individually controlled AC, a luxury private en-suite bathroom with granite worktops, flatscreen TV & entertainment system, shelves, drawers and hanging hooks, a desk and chair. Each cabin is carpeted throughout and has its own theme with hand painted artwork by Carlos Hiller. The salon is located on the main deck and a variety of nightly entertainment available, including slide shows, DVDs and games. Gourmet chef-prepared meals of a combination of American and local Costa Rican cuisine are served in the main deck dining room. On the upper deck is a study where you can view and edit your video and digital photography and the sun deck has comfortable loungers, al fresco dining area and BBQ.

Cocos Island diving gives divers an unforgettable experience. Only accessible via liveaboard, the dive sites of Cocos Island are pristine and uncrowded. Divers will encounter white tip reef sharks, schooling hammerheads, dolphins, mantas and marbled rays, giant moray eels, sailfish, and the occasional whale shark.

Call us or book online today to reserve your space aboard the Argo for world-class diving in the Cocos Island.

The Argo is following stringent safety protocols, detailed sanitation measures have been put into place and all crew and staff are required to provide a negative COVID-19 test before departure. Guest rooms are meticulously cleaned and disinfected daily with a triple-check system for cleaning and sanitation. Argo does require guests to produce a negative COVID test before boarding the ship.

FLEXIBLE BOOKING TERMS - Learn more about what this means

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

Required Extras: National Park Fees (450-554 USD per trip).

Optional Extras: Gratuities, Airport Transfer (30 USD), Nitrox Course (200 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
  • Library
  • 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
  • Observation Deck
  • BBQ Area

Food & Drinks

  • Western Food
  • Vegetarian Options
  • Buffet style
  • Beer available
  • Snacks All Day
  • Vegan Options
  • Fine Wines Selection
  • Free Soft Drinks
  • Wine Available
  • Set Menu Dinner
  • Full-board Option

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 2008
  • Length 129 feet
  • Beam 26 feet
  • Cruising speed 10 knots
  • Engines CAT D398TA - 634 KW (850HP) @ 1225rpm
  • Max guests 18
  • Number of cabins 9
  • Number of bathrooms 9

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

Argo Reviews

  • 9.0 Superb
  • 22 Verified Reviews
  1. Vessel
  2. Crew
  3. Food
  4. Diving
  5. Value
  • 8.8 Fabulous
  • David F
  • United States United States
Once in a lifetime

Few people in life have the opportunity to be submariners; this boat affords you that opportunity. It’s challenging diving but unquestionably worth both the time and money.

Recommended for
1. Submarine; 2. Bait Ball; schooling hammerheads
  • 8.8 Fabulous
  • Kathleen S
  • United States United States
Excellent accommodations and very relaxing and 5 stars for the meals

The weather was excellent and the diving was outstanding. It was so nice to disconnect from the rest of the world for 11 days and just relax and enjoy the diving. This isn't a trip for inexperienced divers given the depth of each dive. It was very fast pace diving, not much room for error and each diver must equalize quickly and get down fast. I was be going back again.

Recommended for
comfort, food, and very laid back
  • 10 Exceptional
  • Linda M
  • United States United States
Cocos Island - Worth the Wait! Should have done it years ago.

I've had Cocos Island on my bucket list for years and dreamed of making the trip on the Argo which I had heard was "the" luxury boat to book. I finally made the booking just a few weeks before the trip when some discounted space was available. The boat and diving was amazing. We had lots of shark action with hammerheads, Galapagos sharks schooling round us, a few Silky and Black Tip sharks and the most white tip sharks I've seen anywhere. We even caught the moment when two white tips mated in the water column and fell to the reef. Lots of large schools of fish and healthy reef diversity. The boat itself was perfect: Nice dive deck with lots of room for gearing up and cameras. The food was good. The cabin was roomy and had a very modern bathroom and plenty of hot water for showers. The dive guides were great and worked hard to get you to the best action. I'm now hooked on Cocos and the Argo! My only regret is that I waited so long to book a trip! One lady on our boat had been to Cocos on 19 trips with the Undersea Hunter boats (Argo or Sea Hunter). I can see why! I hope to be back myself very soon!

Recommended for
Three best things: Healthy reef diversity, lots of sharks, Dive guides and crew.
  • 5.6 Review score
  • Alexis R
  • United States United States

The Food was fantastic, as was the friendly Dining Room Staff. Nice, expensive Cabin. Diving was extremely controlling and monotonous, brought a negative, stressful energy to the Group…no fun at all, very disappointing.

Recommended for
Food, Dining Service, Cabin
  • 8.0 Very good
  • Amy K
  • United States United States
Overwhelmingly awesome experience!

Highlights of the trip included 200+ schooling hammerheads, whaleshark on the last day, submarine ride to 1000 feet! The Cocos experience is so unique. Best dives of my life in terms of what we saw.

Recommended for
the diving, professional crew, the other guests
  • 10 Exceptional
  • Rachel W
  • United States United States
the trip of a lifetime & amenities to match

I had such a wonderful time at Isla del Coco! The diving was sublime, we saw so many sharks!! I loved each of the dive guides on this boat, they were very knowledgable about the dive sites & shark behavior, without being too controlling. Argo itself is a very nice vessel, it's the nicest cabin I've ever had by far. The food was delicious, and the whole experience was top-notch. I hope to return in the future!

Recommended for
dive sites, dive guides, cabins
  • 10 Exceptional
  • Jennifer P
  • United States United States
Freaking Amazing!!!!!

The boat was well thought out for the comforts of a diver from the deck layout, electric outlets to the towels!!! The sleeping rooms were spacious and had ait of room for storage. Things ran very smoothly from communicating with the boat prior to the trip, pick up at hotel in SJ, all the diving and meals, and the return. I would definitely go with the Argo again! Next time I'll have to try the submarine. The crew and guides were amazing. They helped to accommodate every request with a smile.

Recommended for
Saw all the things! Hammerhead, whalesharks, galapagos, manta and a tiger! Every dive was different. Crew was very professional and safe.
  • 9.6 Exceptional
  • John I
  • United States United States
Big fish diving, with a great crew on a very nice boat.

Lots of sharks--white tip, black tip, silver tip, hammerhead, tiger, whale, Galapagos.

Recommended for
Excellent dive staff and crew. Comfortable accommodations. Very good kitchen.
  • 9.2 Superb
  • Alexander S
  • Austria Austria
A must do at the right time of the year

- tiger sharks - massive schools of hammerheads - frogfish - island hiking - super friendly staff - comfortable cabins - excellent food

Recommended for
Diving, island-activities, staff
  • 9.6 Exceptional
  • Pongtharin T
  • Thailand Thailand
Very well organised

Diving itself.

Recommended for
the crews, the boat and the dive sights
  • 9.2 Superb
  • Christophe M
  • France France
coco's island liveaboard

Amazing dives in Manuelita, sighting of hammerheads by dozen every dive and sometimes by hundreds, tiger shark almost every dive on manuelita, good atmosphere and food on board

Recommended for
amazing diving spots, very good sides, good boat
  • 10 Exceptional
  • Ulrika W
  • Sweden Sweden
Truely amaizing diving

We had an amazing time on board the Argo. Diving was excellent!! We saw all we had expected and more!! You can never get tired of hammerheads, tigers, galapagos, silvertips, mantas, eagle rays, marbled rays... But if you do there are lots of other things to see from sea horses to dolphins. The Argo staff was the best ever. So professional, friendly and helpful. They made the whole trip run super smooth. Thank you!!

Recommended for
The marine life, the super staff onboard, the many different dive sites.
  • 9.6 Exceptional
  • Robert H
  • Mauritania Mauritania
Trip of a lifetime

Diving the cocos islands was always a dream for me, well the trip lived up to the dream. Great organization from start to finish. Diving world class, all the staff onboard professional and on hand to ensure diving and life onboard ran smoothly. Diving the cocos islands is not for the non experienced diver, strong currents and tiger sharks require the respect they deserve..seeing all the wildlife up close in the natural environment is the reason you go to cocos. Total respect is paid to the wildlife and environment, no feeding, no touching, no chasing...just dive and experience the true nature all around. Thank you to all the staff, and thank you to all the dive staff for making the diving feel safe but at the same.time a great adventure.

Recommended for
World class diving, Professional crew, Excellent all round trip
  • 9.6 Exceptional
  • Ken C
  • Belgium Belgium

Being surrounded by a school of about 300 hammerheads, 2 huge frog fish and lots of shark activity around the cleaning stations.

Recommended for
Crew, amazing island, no mass destination
  • 9.6 Exceptional
  • Uta W
  • Canada Canada
Best shark diving in an unspoiled environment

Best dives were Alcyone, Small Dos Amigos and Dirty Rock. An always smiling professional crew and the impressive pristine and prehistoric seeming Cocos Island itself

Recommended for
Sharky waters and an unbeatable crew
  • 10 Exceptional
  • Jonathan P
  • Canada Canada
Absolutely Epic Dive Experience and Amazing Hospitality

We had an amazing group and crew which made an already epic dive experience that much better. It seemed like a national geographic expedition with 5 star service and we were fortunate enough to have a solid group of divers from all over the world. Our dive masters were very experienced and we were able to see 12' mantas, walls of hammerhead, tiger shark, white/black tip, galapagos, silky sharks and on our last day a magnificent 20' whale shark. Truly epic dive experience that i can truly say was the best of my life.

Recommended for
Dive masters, Crew and dive experience
  • 8.8 Fabulous
  • Michael C
  • Norway Norway
Diving in beautiful remote location with lots of sharks

Hammerheads, galapagos sharks, tiger shark, oceanic manta's, whale shark

Recommended for
Dive sites, remote location, crew and other guests
  • 5.6 Review score
  • Abdulrahman A
  • Kuwait Kuwait
Could be better

Professor Horhays Lecture about the island

Recommended for
the amount of hammer heads / the beauty of the island / the group
  • 10 Exceptional
  • Susanne
  • Denmark Denmark
Amazing Cocos

Fantastic experience! The Crew all excell in what they do be it food, boat driving, diving or knowledge about the environment. Pure enjoyment to be part of this trip for 10 days!

Recommended for
Atmosphere, the crew, the marine life
  • 8.8 Fabulous
  • Gary M
  • United Kingdom United Kingdom
Amazing trip, once in a lifetime and haven for sharks.

Schools of hundreds of hammerheads swimming around us.

Recommended for
Sharks crew sharks
Origin: US