cocos hammerhead shark

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Argo sailing

Carrying up to 18 divers in incredibly spacious, luxurious surroundings, MV Argo is bright & inviting and provides that famous Undersea Hunter Fleet safety, stability & workhorse power.

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DeepSee Submersible

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DeepSee submersible, custom-built for the Undersea Hunter Group, takes a pilot & two passengers to a depth of 1,000 feet (475 m) for a joy-ride, film-making or scientific research.

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Okeanos Aggressor I

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Okeanos Aggressor I is a 110' yacht, built and powered for comfort, safety and stability on the crossing to Cocos.  She's been doing the Cocos run since 1988 in that typical Aggressor style.

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Okeanos Aggressor II

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The Okeanos Aggressor II (formerly the Wind Dancer) is 120 feet of comfort & stability. She offers the traditional Aggressor amenities in addition to spectacular Cocos Island diving.

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Sea Hunter

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Redesigned with a diver's convenience in mind, Sea Hunter has served Cocos since 1995. At 115 feet, her interior is truly luxurious but below, she's a remarkable workhorse.

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Swim with whales
our hottest trend

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Swim with Orcas - Norway
Dive with Humpbacks- Socorro
Blue & sperm whales - Sri Lanka
Humpbacks - Silver Bank & Tonga
+ more  ...

See Focus on Whales

Encounter magnificent
ocean pelagics

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10-14 night Galapagos cruises
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Astonishing shark encounters
Whale sharks of Cenderawasih
+ more ...

See Special Expeditions

Adrenaline pumping
shark encounters

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Cocos & Galapagos
Tiger Beach, Bahamas
Cat Island, Bahamas
Guadalupe Great Whites
many more ...

See Shark Encounters