Expert

Hammerheads

May-Dec

Cocos Island

UD Rating – 4 Star

MV Sea Hunter

Join this spacious vessel for a journey around the Cocos Islands

After hundreds of diving expeditions, the Sea Hunter has evolved into the consummate hybrid of luxury and utility.

M/V Sea Hunter is a 36 metre boat built for long range expeditions to destinations like the Cocos Islands. The 10 cabins have en-suite bathrooms and air conditioning units, offering space and comfort for 20 guests per charter. The crew members onboard are friendly and experienced and will help with any questions or queries you may have.

The dining room is a cozy and enjoyable area to enjoy the range of American and local cuisine that is served up every day. The large lounge has tables, chairs and long padded seating areas for you to relax or catch up with your fellow guests. There is a variety of nightly entertainment including slide shows, DVD’s and games which also takes place in the lounge area. The study area has comfortable seating and a library that provides guests with a relaxed and private ambience and a personal computer is located here to allow you to view and edit your videos and photos.

The dive deck is large and well-designed offering individual gear storage, large cubbyhole with electric outlets and protected areas for cameras and lights. The sun deck is furnished with loungers, tables and chairs and is the perfect place to catch some sun rays or watch the sunset. The chefs use this area to host their BBQ’s along with dancing under the stars.

Lower Deck Double/Twin Cabin

The lower deck double/twin cabins have personal hanging lockers, shelves, drawers and hanging hooks. A private bathroom equipped with 110-volt outlets suitable for your electronic equipment. It's air-conditioned and carpeted throughout with a circular porthole.

  • Double or Twin Beds
  • Ensuite bathroom
  • Storage
  • Air conditioning

Lower Deck Twin Cabin

The lower deck twin bunk-style cabin comes with personal hanging lockers, shelves, drawers and hanging hooks. A private bathroom equipped with 110-volt outlets suitable for your electronic equipment. It's air-conditioned and carpeted throughout with a circular porthole.

  • Bunk-Style Twin Beds
  • Ensuite bathroom
  • Storage
  • Air conditioning

Upper Deck Cabin

The Upper deck cabin includes shelves, drawers and hanging hooks, a desk and chair and a luxury bathroom with granite surfaces. It is equipped with 110-volt outlets suitable for your electronic equipment. The room has large windows and is carpeted throughout and can be used as a double or twin cabin.

  • Double or Twin Beds
  • Ensuite bathroom
  • Storage
  • Air conditioning

Route Options

This beautiful island with its breathtaking marine life, including large pelagics, guarantees an unforgettable trip

The Cocos Island Marine Park, a world heritage site, is a crown jewel of Costa Rica and was pronounced “the most beautiful island in the world”. Spend a full 6 days diving the pinnacles around the perimeter of the Cocos Island with divers usually averaging three dives per day at depths of 18 to 30 metres. Countless fish, eels, lobsters and many other critters are residents of the hard coral reef and adjacent sand slope of Manuelita Coral Garden while the elusive rosy-lipped batfish can be found at Lobster Rock. The phenomenon of the 'bait ball' can also be observed when little bait fish seek protection by forming a spinning ball.

Arrival Day
You must arrive at least one day prior to the boat departure date.

The evening before boat departure, an Undersea Hunter representative will fax you to confirm your pickup time the next day. The evening is at your leisure. Air transport, airport transfers, hotel nights and meals before and after the cruise are not included in the charter.

Day 1
The following day, generally between 8 AM and 1 PM a transfer is provided from certain hotels 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.

Due to occasional low tides the boat may need to depart from the pier earlier in the day. Should this occur, you will be transferred by skiff to the vessel. 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. Also, the group of incredibly experienced divers provides plenty of stories to pass the time. There are videos and the experience of the Captain and crew to help you get excited for the diving...as if you need them. In addition, you may want to take this time to take one of our 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 (18-30 meters) or more. This, of course, is what the whole trip is about.

Day 9
Make the last 3 dives before the cruise back to Costa Rica and reality!

Day 10
All day to discuss the diving and to compare your adventures!

Day 11
Arrival to Puntarenas. Immediately after breakfast you will be transported back to San Jose. It is strongly recommend to stay one more night on land, before flying out, in case of any unforeseen delays.

This beautiful island with its breathtaking marine life, including large pelagics, guarantees an unforgettable trip

The Cocos Island Marine Park, a world heritage site, is a crown jewel of Costa Rica and was pronounced “the most beautiful island in the world”. Spend a full 7 days diving the pinnacles around the perimeter of the Cocos Island with divers usually averaging three dives per day at depths of 18 to 30 metres. Countless fish, eels, lobsters and many other critters are residents of the hard coral reef and adjacent sand slope of Manuelita Coral Garden while the elusive rosy-lipped batfish can be found at Lobster Rock. The phenomenon of the 'bait ball' can also be observed when little bait fish seek protection by forming a spinning ball.

Arrival Day
You must arrive at least one day prior to the boat departure date.

The evening before boat departure, an Undersea Hunter representative will fax you to confirm your pickup time the next day. The evening is at your leisure. Air transport, airport transfers, hotel nights and meals before and after the cruise are not included in the charter.

Day 1
The following day, generally between 8 AM and 1 PM a transfer is provided from certain hotels 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.

Due to occasional low tides the boat may need to depart from the pier earlier in the day. Should this occur, you will be transferred by skiff to the vessel. 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. Also, the group of incredibly experienced divers provides plenty of stories to pass the time. There are videos and the experience of the Captain and crew to help you get excited for the diving...as if you need them. In addition, you may want to take this time to take one of our diving courses.

Days 3 - 9
Spent diving the pinnacles around the perimeter of Cocos Island. Divers usually average three dives per day at depths of 60-100 feet (18-30 meters) or more. This, of course, is what the whole trip is about.

Day 10
Make the last 3 dives before the cruise back to Costa Rica and reality!

Day 11
All day to discuss the diving and to compare your adventures!

Day 12
Arrival to Puntarenas. Immediately after breakfast you will be transported back to San Jose. It is strongly recommend to stay one more night on land, before flying out, in case of any unforeseen delays.

Vessel Details

Length 115 ft / 36 m
Beam 26 ft / 8.1 m
Draft 8 ft / 2.5 m
Displacement 250 tons
Engines twin GM 16V92 / 1200 total hp
Cruising Speed 9.5 knots
Range 3,500 nautical miles
Tenders Two 24 ft heavy duty fiberglass dive boats - 17 ft rigid bottom inflatable
Portable Generators GM 6-71 75kw - John Deere 105kw - Portable Generator 5kw
Available Voltage 110/220 VAC - 60 Hz - 3-phase 208 VAC - 12 VDC
Fuel Tank 20,000 US gallons (78 tons)
Water Tank 15,000 gallons (60 tons) 1,800 gallons/day water maker
Air Compressors 2 x mako 18.7 cfm electric
Safety Two 25 person life-rafts / Complete boat, crew and passenger safety gear / Firefighting system throughout vessel / Extensive first aid kit / 20 personal diver locator systems
Emergency Equipment Oxygen system and Medic First Aid Kit
Scuba Compressors 2 HP compressors - 1 nitrox generator
Scuba Tanks 30 aluminum 80 cu/ft tanks - 2640 cu/ft high-pressure storage bank
Technical Diving Full oxygen, nitrox and rebreather service. Passengers must bring their own rebreathers.
Regulator $10.00 per day
BCD $10.00 per day
Wetsuit $10.00 per day
Dive Computer $18.00 per day
Torch $7.00 per day
Equipment Rental All diving equipment rental prices listed above are based on per person per day and are payable aboard the boat
15L Steel Tank $12.00 per day

Available Experiences

ITINERARIES AVAILABLE IN THIS DESTINATION

Marcelina

Friday, 06 December 2013

Fabulous Fiji by Marcelina Jesus on Sport Diver Magazine

Lured by the promise of world-class reefs and adrenaline-fueled shark encounters Marcelina Jesus ventures to the wild islands of Fiji.

Fabulous Fiji by Marcelina Jesus on Sport Diver Magazine

What Our Customers Have To Say

Reviews from our Clients, Journalists, Photo Pro's and our own Experts

Our reviews and blogs are an additional guide to evaluate of the holiday is exactley what you are looking for or not. Some love an Eco-Resort, some love air-con and a flat screen TV, we aim to ensure you get what you are looking for, at great value for money.

Bajo Alcyone

Cocos Island, Costa Rica

Bajo Alcyone is the place to see the Hammerheads amongst other pelagic. The abundancy of resident sea life makes this site one of the island’s signature dives. Mantas, Whitetip Sharks, Whale Sharks, Silky, Blacktip Sharks, and hundreds of schooling Hammerheads are everywhere. And underwater plateau, discovered by Cousteau when he visited Cocos Island, is home to a variety of sharks.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 25m

Dirty Rock

Cocos Island, Costa Rica

Located near Wafer Bay, Dirty Rock is an impressive and exciting dive. Noted as one of our guests’ favourites, here you will come up close and personal with Whale Sharks that often cruise around this site.

Dirty Rock is perhaps best known for the hundreds of Marble Rays and huge schools of Jacks that can be seen here. A swim through one of the schools is definitely worth the trip!

  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 39m

Big Dos Amigos

Cocos Island, Costa Rica

Dos Amigos Grande is better known for its huge arch, a swim through so big that an entire diving group can move through it at the same time, Marble Rays swimming among divers, Eagle Rays feeding or mating, and schooling Hammerheads are typical scenarios at this memorable dive site.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Los Amigos Pequena

Cocos Island, Costa Rica

Los Amigos Pequena is another fantastic dive, where you can see Manta Rays, big Silkys and Galapagos Sharks. Huge Yellow Fin Tuner are often seen swimming out in the deep blue.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Isla Manuelita

Cocos Island, Costa Rica

Manuelita is awesome, offering a variety of diving experiences all at the same location! In the shallow area, you can see hundreds of Whitetip Sharks during the night dives. Cleaning stations allow divers to come face-to-face with schools of Hammerheads. Schools of Snappers and Jacks are everywhere and in the deeper area, hiding places abound for divers waiting to watch all the action. A magical dive, day or night!

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Punta Maria

Cocos Island, Costa Rica

Punta Maria is a seamount that rises from a deep sandy area up to 90 feet on the main rock and with two pinnacles reaching up to 65 and 75 feet below the surface, which can only be visited when the current permits. It is a cleaning station for hammerheads and hosts large colonies of white tip sharks and marble rays.

  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 27m

Viking Rock

Cocos Island, Costa Rica

Viking Rock is a fantastic dive site where you can see Hammerheads, White tips, Eagle Rays, Turtles. This is a small helmet-shaped island on the northwest corner of Wafer Bay. A vertical wall leading to large step-like surfaces creates a variety of habitats where one can see both small creatures and large pelagic species.

  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 39m

Silverado

Cocos Island, Costa Rica

Among Cocos Island’s many attributes is a startling degree of biodiversity. This Island’s world-renowned waters explode with life; including innumerable white tip reef sharks, schooling hammerhead sharks, dolphins, mantas and marbled rays, giant moray eels, sailfish, and of course the occasional whale shark. Other common encounters are large schools of jacks and tuna, silky sharks, frogfish, silver tip sharks, marlin, Creole fish, green turtles and octopus.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Submerged Rock

Cocos Island, Costa Rica

Underwater, this rock plunges down both sharply and gradually. It is broken up with large ledges, some with sandy bottoms, and an outer pinnacle. The colourful, prolific fish life gives relief to the harsh contours of the reef. Sometimes the fish gather in such numbers that they momentarily blot out the sun.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 18m

Bait Ball

Cocos Island, Costa Rica

This phenomenon occurs when the little bait fish, upon being hunted, seek protection by forming a furiously spinning silvery ball. This is an attempt of a small species to intimidate and confuse a predator. In a bait ball you can find different bait fish and different hunters. Sometimes the bait fish will be trapped between the surface and the hunters below. This is when the boobies and frigate birds will join the feast. These special events can happen anywhere and at anytime.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 6m

Shark Fin Rock

Cocos Island, Costa Rica

From the surface, this pyramidal rock looks exactly like its name, shark fin. This beautiful site hosts a huge school of thousands of bigeye jacks and is the home of an active colony of friendly marble rays. Because of the heavy surge often present on the spot, Shark Fin can only be safely dived between 40 and 120 ft.

  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 39m

Lobster Rock

Cocos Island, Costa Rica

On this finger-like rock, divers can easily approach large white tips lying on the bottom in great numbers. In the deep sandy area surrounding it, the elusive rosy-lipped batfish can be found between 90 and 120 feet.

Marine Life: White tips, marble rays, manta rays, eagle rays, red lip batfish, frogfish, garden eels

  • Dive Type: Boat Dive
  • Diver Level: Advanced Open Water Diver
  • Max Depth: 33m

Manuelita

Cocos Island, Costa Rica

Manuelita dive site has a boulder formation where you will find hammerhead sharks along with other marine life including lots of White Tips, Marble Rays and schools of Creoles. A great day and night dive. Known as the dive site that never sleeps!

  • Dive Type: Deep Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30

Bird Island, Chatham Bay

Cocos Island, Costa Rica

Dove from Chatham Bay, southeast of Manuelita, this site provides a variety of marine life including Frog Fish, lobsters, morays, rays, White Tip Sharks and Hammerheads. There is even a cleaning station.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30M

Manta Corner

Cocos Island, Costa Rica

South of Cocos Island. The reef is about 27 metres deep if you want to full presence of manta rays! The reef is believed to be part of the submerged mountain range. It can be a boat, drift or deep dive.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 33m

Little Dos Amigos

Cocos Island, Costa Rica

Known for being a hammerhead cleaning station. Located south-east of Cocos Island, below Big Dos Amigos dive site. The visibility is 20m. This dive site often suprises divers as the open sea current first reaches the island at this point bringing in a wide variety of marine life.

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 30m

Bajo Dos Amigos

Cocos Island, Costa Rica

Bajo Dos Amigos is a seamount shaped like a king's crown; this is the only place where black coral colonies can be watched at safe depths, between 100 and 130 feet. Definitely not an easy place to dive, due to the strong currents normally present on this site, we will only visit here during the dry season.

Marine life: Hammerheads, mobula rays, manta rays, eagle rays, sailfish, wahoos, black coral

  • Dive Type: Boat Dive
  • Diver Level: Open Water Diver
  • Max Depth: 39m
Dates Duration Route Room Type Price
30 May 2025
9 Jun 2025
10 Nights Cocos Island - 10 Nights Lower Deck Twin Cabin £0
4 Aug 2025
15 Aug 2025
11 Nights Cocos Island - 11 Nights Lower Deck Twin Cabin £0