Latest News

MV Argo is currently undergoing a renovation that will give the luxury live aboard an additional cabin. Adjacent to the upstairs lounge the new cabin #9 will have the same fabulous amenities and features of the other Argo cabins.

The principles of sustainability and environmental responsibility are matters of supreme importance to us as a company, and extend to all aspects of our mission and operations. For this reason, we want to address a question often raised by our guests: Where does the fish we serve on board come from?

Biologists from Misión Tiburón, a Costa Rica based NGO dedicated to shark conservation, are currently in the second year of a five-year shark population project. Their goal is to study the whitetip reef shark population at Cocos Island in order to understand the sharks' behavior, distribution, and habitat.

We have added newly released and state-of-the-art diver locators by Nautilus Lifeline.

The DeepSee has been featured in many films, but now she has crossed over to the big screen, IMAX!!! This expedition to Cocos was led by Greg MacGillivary, from MacGillivary-Freeman IMAX Production California, and their new One Ocean One World Campaign.

After a seven year career as a dive master and cruise director for the Undersea Hunter Group, Edwar Herreno has begun working as our Head Dive Officer. Based at our pier in Puntarenas, Edwar is responsible for managing the dive masters, captains, and crew, as well as supporting all the dive equipment and maintenance. As a professional videographer and photographer Edwar also support the Cruise Directors video editing needs. So keep an eye out for all the new videos being posted on our YouTube Channel and here on our Video Gallery.

All of our vessels are now outfitted with Zero Speed Stabilizers. The dual stabilizers dramatically reduce roll motion while anchored at Cocos Island. The inverted pyramid-shaped stabilizers are suspended on either side of the boat on outriggers and then dropped 15ft/4.5m under the water...

DEMA Show 2011 is the only international trade-only event for the diving, action water sports and travel industries. This year it took place in Orlando, FL Nov. 2-5 and as always we enjoyed reconnecting with old friends and making new friends as well.

Alan has been described as “a master of logistics”, “the type of guy that can find a solution to any problem”, and as "having the ability to bring a sense of humor to any situation”. Alan Steenstrup has worked as the International Sales Manager for the Undersea Hunter Group for 16 years. He organizes and supports special customers and projects such as conservation groups, scientific research expeditions, film making projects, private charters, and news organizations.

The trip departed June 28th on the Argo, with the DeepSee Sub aboard and ready for use. In order to facilitate the trip, the Argo was outfitted with a portable weather station, lab, and additional equipment used for taking samples.

Entering his 8th year with the Undersea Hunter Group, Chef Luis and his support team, Chefs Assistant Pablo and Waiter Roberto, create delicious and inventive meals. Before ...

The new species, called Johngarthia Cocoensis, was discovered on the island by researchers Robert Perger and Rita Vargas of the University of Costa Rica and Adam Wall of ...

Safety Officer As the Company Safety Officer, Nelson Diaz strives to ensure that all areas of your live aboard dive experience are executed at the highest level of safety. With many years of experience as captain of the Undersea Hunter and Sea Hunter he is constantly working to prepare, train, and supervise all facets of the Undersea Hunter Group’s emergency training and preparedness procedures. Click here to read more about our Safety Procedures.

As the Company Safety Officer, Nelson Diaz strives to ensure that all areas of your live aboard dive experience are executed at the highest level of safety. With many years of experience as captain of the Undersea Hunter and Sea Hunter he is constantly working to prepare, train, and supervise all facets of the Undersea Hunter Group’s emergency training and preparedness procedures. Click here to read more about our Safety Procedures.

The UCR-UNA Coco III expedition departed March 26th aboard the Undersea Hunter. In order to facilitate the trip, the Undersea Hunter was outfitted with a portable weather ...

We are now part of a new alliance that brings together the world's top live-aboard diving companies.

Here are the newest photos direct from our pier in Puntarenas of the M/V Sea Hunter's remodel. We have added two new suites to the upper deck. The addition created a slight ...