Hammerhead Heaven

Cocos Island is renowned for its massive schools of scalloped hammerhead sharks. Divers often find themselves surrounded by these enigmatic predators, sweeping past in mesmerizing formation. It's one of the rare places on Earth where witnessing such congregations is not only possible, but expected.

Big Animal Encounters

There’s no need to hope for a big sighting, chances are, it’s already circling. Tiger sharks, whale sharks, and massive Galapagos sharks show up without fanfare. Rays drift past like shadows.

The Wild Edge

Cocos doesn’t feel like anywhere else. The ocean moves with energy, the reef walls drop away into deep blue, and the water hums with life. There’s a sense of anticipation before every dive, like something extraordinary could appear at any moment. And often, it does.

A Remote Adventure with Rich History

Cocos Island's isolation makes it feel like stepping into another world. Beyond its breathtaking dive sites, it holds a history of pirates, explorers, and conservationists. Its remoteness adds a sense of discovery. Every dive feels like exploring a place that’s been largely untouched by time.

about COCOS island

A remote gem in the eastern Pacific, Cocos Island is a UNESCO-listed marine sanctuary with a rich history of pirate legends and rumored hidden treasures. Cocos Island's marine ecosystem is one of the most unique and biodiverse in the world, shaped by its remote location in the eastern Pacific. Situated about 550 km off Costa Rica's mainland, it lies within the Eastern Tropical Pacific Marine Corridor, a vital migratory route connecting Galapagos, Malpelo and Coiba,

Towering pinnacles, volcanic formations and deep-water currents create an ecosystem that supports some of the ocean's most impressive marine life. Schools of hammerheads, tiger sharks and manta rays thrive in its nutrient-rich waters.

In recent years, stricter marine protections and increased patrolling have helped curb illegal fishing, allowing shark populations to recover. These conservation efforts ensure Cocos remains a thriving sanctuary for marine megafauna and a dream destination for divers seeking world-class encounters.

ITINERARY

DAY 1 San Jose to Puntarenas

• Pick up from hotel in San Jose and journey to Puntarenas. The ride will take about 1hr40mins, and this scenic route is a beautiful way to see the lush countryside

DAY 2-3 Sail to Cocos Island

• Kick back, relax and get to know your fellow divers as we'll be sailing to Cocos Island for about 32 hours.

DAY 4-10 Eat, sleep, dive

• Averaging a total of 21 dives - ample opportunities to explore each of Cocos Island's legendary dive sites. There is also a possibility to visit the ranger station at Wafer Bay.

DAY 10-11 Sail back to Puntarenas

• It's going to be another 32 hours sailing back, so we'll have ample time to dry our gear and swap photos.

DAY 11: Puntarenas

• Wake up bright and early to say goodbye and check out at 7am before making our way back to San Jose.

top dive sites

ALCYONE

Named after Jacques Cousteau’s research vessel, Alcyone is a 25-meter-deep seamount and one of Cocos Island’s most iconic dive sites. Massive schools of hammerhead sharks are the main draw, often accompanied by eagle rays and other pelagic life. The site's unique underwater topography and steady currents create ideal conditions for thrilling big-animal encounters in the open blue.

DIRTY ROCK

Named for the bird droppings that cover its surface, Dirty Rock is a Cocos favorite known for its dynamic underwater landscape and abundant marine life. Galapagos sharks and eagle rays often cruise by, while dense schools of jacks swirl around the rock formations. It’s a vibrant, high-energy site with plenty to take in on every dive.

MANUELITA

As you descend at Manuelita, glance toward the island—a pirate-like skull shape appears in the rocks, setting the tone for an unforgettable dive. This site offers Cocos’ best chance to see tiger sharks up close. Galapagos sharks cruise the reef edge, hammerheads drift through the blue, and whitetip reef sharks rest calmly in the sandy shallows.

DOS AMIGOS

This dive site features two islets—Big Dos Amigos and Small Dos Amigos—each offering something special. Big Dos Amigos is famous for its stunning, coral-covered arch, a dramatic swim-through often surrounded by pelagics. At Small Dos Amigos, we encountered an unusually friendly whale shark that kept coming back to play with our bubbles. Both sites attract Galapagos sharks and hammerheads.

vessel

The Cocos Island Aggressor is a 124-foot luxury liveaboard designed for ultimate comfort and convenience during your dive expedition. This well-equipped vessel accommodates up to 22 guests in 11 comfortable staterooms, each featuring private bathrooms, individual climate control, and entertainment options. The boat’s spacious salon offers a relaxed environment for socializing, and the sun deck provides panoramic views, perfect for unwinding after a day of diving.

The Cocos Island Aggressor is equipped with two tenders for quick access to dive sites around the island, allowing for four dives per day. The crew ensures that every detail is attended to, from freshly prepared meals to expert guidance on dive sites. The boat’s amenities include a hot tub, a well-stocked bar, and cozy common areas for relaxation.

additonal info

RECOMMENDED ARRIVAL DAY

Plan for a one-night stay in San Jose prior to the transfer to Puntarenas.

ARRIVAL AIRPORT

Juan Santamaria International Airport (SJO)

TRANSFERS

The bus ride from San Jose to Puntarenas will take about 1 hour 40 mins, and sailing from Puntarenas to Cocos will take about 32-36 hours depending on weather conditions.

FOOD

The menu onboard offers a variety of American and local cuisines. If you have any special dietary requirements, please advise us as soon as possible so the yacht can prepare to meet your needs. It is important to recognise that Aggressor cannot guarantee personal requests despite their best efforts. Guests with dietary restrictions and food allergies should be aware that the same meal is prepared for all guests, making cross-contamination a possibility. Based on this, travelers should plan accordingly and bring pre-packaged goods if needed. The Aggressor includes fruit juices, soft drinks, iced water, iced tea, coffee and a limited selection of local beer and wine, which are complimentary.

RATES

Prices are quoted in USD per person. Prices subject to change without prior notice.

MASTER USD 7,200 (twin sharing)

DELUXE USD 6,850 (twin sharing)

PARK FEES & TAX

Cocos Island Park Fee: USD 490 per person plus 13% VAT tax

Cocos Island Emergency Evacuation Plan: USD 30

Park fees and VAT tax may be paid in cash or by credit card (3% added fee if paid by credit card)

Contact us to purchase short-term DAN diving insurance.

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