Cocos Island National Park
- Rainy season: June – November, best for schooling hammerheads.
- Dry season: December – May.
Scuba Diving Cocos Island
Located approximately 550 kilometres off the Pacific coast of Costa Rica, Cocos Island is widely regarded as one of the world’s greatest shark diving destinations. Protected as a UNESCO World Heritage Site and surrounded by nutrient-rich ocean currents, this remote volcanic island attracts an extraordinary concentration of pelagic marine life, making it a true bucket-list destination for experienced divers.
Accessible only by liveaboard, scuba diving in Cocos Island is renowned for spectacular encounters with schooling hammerhead sharks, Galápagos sharks, tiger sharks, silky sharks, dolphins and other large marine species. The island’s dramatic underwater landscapes, powerful currents and remarkable biodiversity have earned it a reputation alongside the Galápagos and Socorro as one of the world’s premier big-animal diving destinations.
For divers seeking unforgettable shark encounters, remote expedition-style diving and some of the most exhilarating underwater experiences on Earth, Cocos Island remains one of the crown jewels of the Pacific Ocean.
Cocos Diving Highlights
- Hammerhead Sharks
- Variety of rays
- Dolphins
- Manta ray
- Sea Turtles
- Whale sharks
- Silky sharks
- Dense rainforests and unique animals
- Rivers and Waterfalls
- Orcas
- Wahoo
- Sailfish
- Schooling pelagics
- Galapagos sharks
- Seamount diving
Hammerhead Shark Diving in Cocos Island
Cocos Island is widely regarded as one of the world’s greatest destinations for hammerhead shark encounters. Divers travel from across the globe for the opportunity to witness enormous schools of scalloped hammerhead sharks gathering around the island’s seamounts, cleaning stations and current-swept pinnacles.
Few underwater experiences rival the sight of hundreds of hammerheads emerging from the blue in one of the Pacific Ocean’s most remote marine environments. These spectacular encounters have earned Cocos Island a legendary reputation amongst shark enthusiasts, underwater photographers and experienced divers seeking truly world-class big-animal diving.
Shark Diving & Pelagic Marine Life
Beyond its famous hammerhead schools, Cocos Island supports an extraordinary abundance of pelagic marine life. Divers may encounter Galápagos sharks, tiger sharks, silky sharks, whale sharks, manta rays, dolphins and large schools of fish moving through the nutrient-rich waters surrounding the island.
The convergence of powerful ocean currents and protected marine habitats has created one of the most biodiverse shark diving destinations on Earth. Combined with exceptional visibility and dramatic underwater scenery, these encounters place Cocos Island firmly amongst the world’s premier pelagic diving destinations alongside the Galápagos and Socorro.
Remote Liveaboard Expeditions & UNESCO Protection
Scuba diving in Cocos Island is exclusively accessed by liveaboard, with expeditions crossing hundreds of kilometres of open Pacific Ocean from Costa Rica. The island’s remote location has helped preserve its remarkable ecosystems and contributes significantly to the sense of adventure experienced by visiting divers.
Protected as both a UNESCO World Heritage Site and part of the Cocos Island National Park, the surrounding waters provide a vital sanctuary for sharks, pelagic species and migratory marine life. The combination of remote exploration, marine conservation and world-class diving has helped establish Cocos Island as one of the most sought-after liveaboard destinations in the world.
Vegan & Plant-Based Diving in Cocos Island
The remote nature of Cocos Island means all diving is conducted via liveaboard expedition, making advance planning for dietary requirements particularly important. Fortunately, many of the liveaboards operating to Cocos Island are experienced in catering for vegan and plant-based divers when notified in advance.
While options are naturally more limited than in mainland destinations, it is entirely possible to enjoy a comfortable and rewarding vegan-friendly liveaboard experience. At Infinite Blue Dive Travel, we work closely with operators that understand the needs of vegan and plant-based travellers, helping ensure your adventure is as enjoyable above the water as it is below.
Vegan, plant-based and cruelty-free scuba diving ❤️
Cocos Travel Tips (at a glance)
- Currency: Costa Rica Colon (CRC)
- Language: Spanish
- Capital: San Jose
- Power supply: 120V|60Hz
- Plug type: Type A | two flat pins
- Weather: Tropical
- Culture: Friendly and welcoming
- Visa: Visa on Arrival for most passports
- International airport: Juan Santamaria (SJO)
Diving Cocos FAQ's
Where is Cocos Island?
Cocos Island is part of Costa Rica in Central America. Situated around 550 kilometres west of the mainland, you will need to travel here by boat.
After arriving in Costa Rica, travel to Puntarenas, the port where you will embark your liveaboard for the roughly 36-hour trip into the Pacific.
Can a beginner dive Cocos Island?
Scuba diving Cocos Island is best for experienced divers. This is to ensure your safety, and to guarantee your enjoyment. The best diving in Cocos is around rocky shorelines, seamounts, and boulders. These are all subject to strong currents and surge. A general rule of thumb would be to make sure you are an advanced level diver with at least 50 dives under your belt.
Is diving Cocos Island expensive?
Diving Cocos Island is not cheap. As it can only be dived by liveaboard, and those boats need to travel a long distance to get there and back, the basic operating costs are high. Also, to maintain a good level of service in such a remote place, is going to affect prices. The beginning cost for a Cocos Island liveaboard is around 300 USD per day.
When is the best time to dive Cocos Island?
Cocos Island offers excellent diving year-round, although conditions vary by season. The wet season, typically from June to November, often brings stronger currents and greater opportunities to encounter larger pelagic species, including whale sharks.
The drier months generally provide calmer sea conditions and excellent visibility. Regardless of the season, hammerhead sharks, reef sharks and other pelagic marine life can be encountered throughout much of the year, making Cocos Island a rewarding destination whenever you choose to visit.
Is Cocos Island good for diving?
Cocos Island is widely regarded as one of the world’s premier scuba diving destinations, particularly for experienced divers seeking encounters with large pelagic marine life. Located in the eastern Pacific Ocean approximately 550 kilometres from Costa Rica, the island is famous for its extraordinary shark diving, schooling hammerhead sharks and remote liveaboard expeditions.
Protected as a UNESCO World Heritage Site, Cocos Island offers some of the most exhilarating underwater experiences on the planet. Combined with dramatic underwater topography, exceptional marine biodiversity and a strong focus on conservation, it is frequently ranked alongside the Galápagos and Socorro as one of the world’s greatest big-animal diving destinations.
Can you see hammerhead sharks at Cocos?
Yes. Cocos Island is one of the world’s most famous destinations for hammerhead shark encounters. Divers regularly witness large schools of scalloped hammerhead sharks gathering around the island’s seamounts, pinnacles and cleaning stations, creating some of the most iconic shark diving experiences available anywhere in the world.
The nutrient-rich waters surrounding the island attract an incredible concentration of marine life, making hammerhead encounters a highlight of most liveaboard expeditions. For many divers, seeing hundreds of hammerhead sharks moving through the blue is one of the primary reasons for visiting Cocos Island.
What marine life can you see at Cocos?
Cocos Island is renowned for its extraordinary abundance of pelagic marine life. Divers may encounter scalloped hammerhead sharks, Galápagos sharks, tiger sharks, silky sharks, whale sharks, manta rays, dolphins, sea turtles and large schools of fish throughout the year.
The island’s remote location and protected status have helped preserve one of the Pacific Ocean’s richest marine ecosystems. Combined with dramatic underwater landscapes and nutrient-rich currents, these conditions create exceptional opportunities for wildlife encounters and underwater photography.
Why is Cocos famous amongst scuba divers?
Cocos Island is famous for its world-class shark diving, remote liveaboard expeditions and remarkable concentrations of pelagic marine life. The island’s schools of hammerhead sharks have become legendary within the diving community and are considered amongst the best shark encounters available anywhere on Earth.
Its status as a UNESCO World Heritage Site and protected marine reserve has helped preserve an extraordinary underwater ecosystem that attracts divers from around the world. Combined with dramatic underwater landscapes and a true sense of exploration, Cocos Island remains one of the most sought-after dive destinations in the Pacific Ocean.
Can vegan divers enjoy diving Cocos?
Yes. Although Cocos Island is only accessible via liveaboard and is far more remote than many other dive destinations, most operators can cater for vegan and plant-based diets when notified in advance.
At Infinite Blue Dive Travel, we work closely with liveaboard operators that understand the needs of vegan and plant-based travellers, helping ensure that your dietary requirements are accommodated throughout your expedition. With appropriate planning, it is entirely possible to enjoy a comfortable and rewarding vegan-friendly diving adventure to Cocos Island.
