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Liveaboard · Aggressor Adventures

Okeanos Aggressor (Cocos)

$$$$ 8-10 nights Nitrox Documented
Verify before booking Liveaboard schedules, itineraries, prices and even vessels change frequently. This profile is compiled from public information — confirm everything with the operator directly: aggressor.com ↗

Routes: Crosses roughly 36 hours of open Pacific from Costa Rica to Cocos Island, then spends the trip working Bajo Alcyone, Dirty Rock and Manuelita for schooling hammerheads. This is advanced, current-swept diving far from help.

Season: Cocos runs year-round; the June-November rainy season brings the biggest hammerhead schools along with rougher crossings.

Character: Hammerhead schools, tiger sharks and open-ocean pinnacles

Prices: Budget $5,500-7,000 plus park fees. The small pool of Cocos vessels changes over time and crossings depend on weather; verify the active boat and schedule with the operator.

Departures: Departs Puntarenas on Costa Rica's Pacific coast.

The diving it reaches

Australia, New Zealand & East Asia

Cairns & the Ribbon ReefsNingaloo ReefCoral Sea & Osprey ReefOkinawa & the Kerama IslandsPoor Knights IslandsTownsville & the YongalaGreen IslandIzu Peninsula

Caribbean & Western Atlantic

BonaireCozumelRiviera Maya & the CenotesBelize Barrier ReefGrand CaymanIsla Mujeres & CancúnRoatánTiger Beach & Grand Bahama

Europe, Atlantic & Mediterranean

Malta & GozoSilfra & IcelandThe AzoresCanary IslandsLarnaca & the ZenobiaScapa FlowArctic NorwayMadeira

Indian Ocean & East Africa

North & South Malé AtollsAri AtollBaa Atoll & Hanifaru BayAliwal Shoal & UmkomaasMafia IslandMauritiusSeychellesSodwana Bay

Pacific Islands & Micronesia

PalauChuuk (Truk) LagoonFakaravaKona, HawaiʻiRangiroaTaveuni & Rainbow ReefBeqa Lagoon & Pacific HarbourEspiritu Santo

Red Sea & Middle East

Sharm El Sheikh & Ras MohammedBrothers, Daedalus & St John'sDahabHurghada & El GounaMarsa Alam & the Deep SouthAqabaDaymaniyat IslandsMusandam Peninsula

Southeast Asia & Coral Triangle

Bali & Nusa PenidaKomodoRaja AmpatSipadan & MabulAnilaoCoronKoh TaoLembeh Strait

The Americas & Eastern Pacific

Galápagos IslandsCocos IslandFlorida KeysSea of Cortez & Cabo PulmoSocorro & the RevillagigedosBritish ColumbiaCalifornia Channel IslandsCosta Rica Pacific Coast