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Shark Encounters
Whale Shark Encounters
Pelagic Encounters
Photo Group Trip
Escape to Cocos Island on a liveaboard scuba diving trip in Costa Rica! Cocos is a lush, green, uninhabited island resting 342 miles off Costa Rica's Pacific coast. Rocky pinnacles surrounding Cocos are beacons for big animals and big action. Schooling hammerheads, countless white-tip sharks, mantas, tuna, and even whale sharks call Cocos home. This ten-day trip offers seven days of Costa Rica liveaboard scuba diving.
To get a little insight as to what the trip is like, read the reports from our previous trips: 2015 trip and 2016 trip.
Check out this amazing video from Aggressor Adventures!
You'll be diving in water temperatures between 72-82F with cool thermoclines.
A brand new custom-built dive yacht, the Cocos Island Aggressor is built and powered for comfort, safety, and stability. The Cocos Island Aggressor is the perfect vessel for exploring Cocos Islands.
The Cocos Island Aggressor can comfortably accommodate up to 22 passengers in a total of 10 cabins. Guests can choose between the Deluxe Stateroom, equipped with twosingle beds and portholes, or the Master Staterooms, with two twin beds or a queen bed, and a large picture window. All rooms come complete with air conditioning, private bathrooms and showers, and a monitor with a media plater.
Master Stateroom (L) & Deluxe Stateroom (R)
Spacious Salon (L) & Dining Area (R)


Mark Strickland’s life-long interest in the sea has included over 10,000 dives and careers as a lifeguard, boat captain, and scuba instructor. His passion for underwater photography has led him to many top dive locales, including the Virgin Islands, Australia, and Thailand, where he spent 17 years as Cruise Director on a series of liveaboards. Mark now resides in Ventura County, California.
An avid marine naturalist, Mark has discovered several nudibranch species. He is co-author and principal photographer for Lonely Planet’s award-winning book, “Diving and Snorkeling Thailand”, and his work appears in many magazines, books, and displays around the world. Currently, Mark leads several dive trips each year to his favorite destinations, while working on a career-spanning large-format pictorial book.
Mark's photos and articles have appeared in magazines and books around the world, including Action Asia, BBC Wildlife, National Geographic World, Natural History, Scuba Diving, Skin Diver, Sport Diver, Sportdiving, Unterwasser, and many others.

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