Undersea Hunter’s newest boat, the Argo, is a member of DivEncounters Alliance. She is the physical expression of all the knowledge they Undersea Hunter has gained from operating their vessels over the years, assembled into a singular, dive expedition cruiser.

Argo was totally redesigned and refitted in 2008, to pamper up to 16 discriminating passengers in 8 spacious, well-appointed staterooms. A 130-foot vessel (40 meters) with full global reach, the Argo was also conceived to serve as the ultimate platform for a dep-diving submersible as well as for remote operating vehicle deployment (R.O.V.) . She offers heavy lift capabilities, stability and ample deck space for any chore imaginable.


Fourteen crew members look after the ship, the projects and the guest’s every need. A comfortable and stylish lounge, dining area and sun deck comprise the social areas. The ambience is completed with original, undersea themed artwork throughout. The well-equipped galley enables the ship’s chefs to prepare fresh, international level, four-star cuisine for meal times or at the “drop of a hat”.

On board accessories consist of all standard diving gear including scuba, Nitrox and rebreather facilities. Three powerful, 24-foot skiffs serve as tender-boats, which perform submersible tracking duties, shepherding of divers to remote sites, ship-to-shore transfers and any other conceivable recreational or support related activities.


The menu aboard offers a delicious combination of American and local cuisine. Meals are varied and well balanced, and they also offer delicious snacks between dives. Food is abundant with plenty of fresh tropical fruit and salads and is served buffet style. Hard liquor is not available on board but guests are welcome to bring their own, which should be purchased prior to boarding.

Sample Itinerary:

  • Arrival Day: You must arrive at least one day prior to the boat departure date.
  • Day 1: Pick up from hotels between 8AM and 1PM. Transfer by bus to Puntarenas where you will board the vessel. The drive takes about 2 1/2 hours, and gives you a chance to view the lush forest and rich farmland of the region. When all passengers have arrived on board, the vessel will take a 32-36 hour cruise out to Cocos Island.
  • Day 2: A travel day. There will be time to arrange dive and camera gear as well as enjoy the Pacific and the sunshine. There are videos and the experience of the Captain and crew to help you get excited for the diving. In addition, you may want to take this time to take on of their diving courses.
  • Days 3-8: Spent diving the pinnacles around the perimeter of Cocos Island. Divers usually average three dives per day at depths of 60-100 feet or more.
  • Day 9: Make the last 3 dives before the cruise back to Costa Rica and reality!
  • Day 10: Another travel day allowing time to discuss the diving and compare your adventures!
  • Day 11: Arrival to Puntarenas. Immediately after breakfast you will be transported back to San Jose.

The Diving:

Cocos is not recommended for inexperienced divers because it is an open ocean destination that requires advanced open water diving skills. Most dives are at depths deeper than 60 feet. At Cocos currents and visibility can be entirely different in just a few hours.

Most of the action is at 60-90 feet, and most dives are between 60-130 feet. Visibility averages 60-100 feet.

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