The 33m MV Okeanos Aggressor offers year-round dive cruises to Cocos Island. Up to 22 divers can be accommodated within 10 luxury staterooms, each with a private bath and shower, port window and AC.
The MV Okeanos Aggressor II is fitted with 11 deluxe staterooms that cater up to 22 guests on their voyage to Cocos Island. Each is equipped with a private bathroom and shower, and climate control.
- Free Nitrox
The purpose built 35m liveaboard, the MV Sea Hunter, is an extremely stable platform for divers, offering comfortable voyages to Cocos Island, Costa Rica. The 10 cabins feature AC and an en-suite.Sea Hunter
What To Expect On a Bajo Alcyone Liveaboard
Liveaboards to Bajo Alcyone will normally be as part of a dive trip incorporating all the sites of the Cocos Islands. Virtually every liveaboard itinerary will stop here for some time, allowing divers to experience some of the best shark diving in the world. Once you jump into the pleasantly warm waters of this famous site, you'll soon realise why divers consistently sail nearly 2 days to get here. Superb visibility, incredible biodiversity, and the sight of circling groups of over 100 Scalloped Hammerheads, give this unbelievable site it's well deserved status amongst the finest scuba diving spots on the planet.
What You Can See
Live aboard dive boats come here for one main reason: Scalloped Hammerhead Sharks. Arguably there's no better place to view these incredible creatures than this isolated spot off the Costa Rican Pacific coast. Their distinct body shape form some stunning silhouettes as they swim in the sunlight above groups of divers, allowing fantastic opportunities for underwater photography enthusiasts.
The sheer numbers of Hammerheads on show will mesmerise even those that are expecting it, and even after a few dives over several days, we've yet to hear of anyone tiring at the view! They are often found in groups of over 100, a site very rarely seen across the entire globe. Liveaboard dive cruises to this region tend to last for at least 10 days, giving guests ample time to dive with these beautiful animals, as well as relax on board in style.
The Hammerheads are present all year round, although they are in their highest numbers during the wet season which runs from June through to December. The dry season however offers the best visibility and calm seas, and so in truth there really is no bad time to be underwater here.
Although the main draw is the Hammerheads (and rightly so), there's no shortage of other marine life to be seen at Bajo Alcyone in addition to the premier attraction. Manta and Mobula Rays are normally present, attracted by cleaning stations in the area. There are also several different shark species to complement what you will have already encountered - including Whitetips, Blacktips, Silvertips and Silkys. It really is a world class site, and a true pleasure to dive at, which will no doubt be one of the main highlights of any liveaboard trip to Costa Rica.
Getting to Bajo Alcyone
As it is within the Cocos Islands, some 550 kilometres from the Costa Rican mainland, diving at Bajo Alcyone is only possible on a dive liveaboard cruise. These normally depart from the port of Punterenas, a 90 minute drive from the country's capital San Jose. Guests can either arrange their own accommodation in the city and then transfer to Punterenas, although commonly liveaboard operators will include these as part of the itinerary.
Getting to San Jose is straight forward as it has a well served international airport, flying to and from many destinations across the Americas. If you are coming from elsewhere, your route will often involve changing in the United States.
Some longer term travellers will arrive in Costa Rica overland also, as it is well connected to it's neighbouring Central American countries.
Bajo Alcyone Diving Reviews
The best dives of the trip. Hundreds of scalloped hammers schooling and circling. Epic, jaw dropping stuff!Diving Bajo Alcyone in October on the Okeanos Aggressor
- great - sharks everywhere - the mountan of the sharks - deep water - nothing for beginners - Nitrox absolutely necessary- newDiving Bajo Alcyone in March on the Okeanos Aggressor
Spectacular with hammerheads, lobsters, marble rays, tip sharksDiving Bajo Alcyone in March on the Okeanos Aggressor
We did one dive at this site and it wasn't very memorableDiving Bajo Alcyone in December on the Okeanos Aggressor II
Alcyone was a bit poor but December is not the season for the famous picture, however Manuelita was on fire? guides were good.Diving Bajo Alcyone in December on the Argo Liveaboard
one of the best diving sites thereDiving Bajo Alcyone in November on the Argo Liveaboard
The first morning dive in Alcyone was amazing. a lot of Galapagos shark. An real eating an octopus and many hammerheads. the visibility was actually pretty good this diveDiving Bajo Alcyone in September on the Okeanos Aggressor
Fantastic.Diving Bajo Alcyone in October on the Okeanos Aggressor
Awesome, one of the best sports to enjoy huge hammerhead schools.Diving Bajo Alcyone in August on the Okeanos Aggressor II