Submerged Rock is a deep offshore pinnacle located 1600 metres from the shore of Cocos Island. The site topography features a mix of open-water pinnacle diving and cave sections, with depths ranging from 20 to 42 metres. Divers must be prepared for moderate currents, surge, and overhead environments. Visibility typically fluctuates between 10 and 30 metres. Due to the depth and conditions, this site is strictly for advanced divers with deep certification. Boat entry is required, and divers should remain aware of potential entanglement risks within the structure. Water temperatures generally range from 24 to 27C, though occasional thermoclines can cause temperatures to drop into the low 20s.

Shark Fin Rock is an exposed oceanic pinnacle located off Cocos Island, Costa Rica. The site features a reef structure dropping from 15 to 40 metres, with an average depth of 25 metres. Divers encounter strong currents and occasional cold thermoclines, requiring advanced skills and solid buoyancy control. Visibility typically ranges between 10 and 30 metres. The site is accessible only by boat, and night diving is available through liveaboard operators. Species recorded around this area include whitetip reef sharks, spotted eagle rays, various moray eels, groupers, and wrasses. Due to the surge, swell, and strong currents, divers must maintain close contact with their guide throughout the 50-minute dive.

Alcyone is a seamount pinnacle located off Cocos Island, accessible only via liveaboard. The site features depths ranging from 25 to 36 metres, with an average depth of 27 metres. Divers experience strong, shifting currents and visibility between 15 and 35 metres. Water temperatures typically range from 25 to 28C, though thermoclines can cause temperatures to drop to 18 to 22C below 25 metres. Due to the depth, strong currents, and potential for surge, this site is suited for advanced divers. Divers must follow guide briefings closely and maintain awareness of potential hazards including cold water, deep conditions, and entanglement risks.

Bajo Alcyone is a deep-water pinnacle located off Cocos Island, Costa Rica. This advanced dive site features a reef structure with working depths between 25 and 40 metres, averaging 30 metres. Divers must access the site via boat, as it is located 550 kilometres from shore. Conditions are challenging, characterised by strong currents and visibility ranging from 15 to 35 metres. Thermoclines are common, particularly during the wet season, causing abrupt temperature drops. Due to the depth and current, this site requires precise gas management and buoyancy control. Divers should time their descent for slack water or the early push of current to manage bottom time effectively.

Small Dos Amigos is an exposed drift dive located off Cocos Island, Costa Rica, characterised by strong currents and open ocean conditions. The site features a reef topography ranging from 23 to 50 metres, with an average depth of 25 metres. Due to the significant surge, swell, and current, this site is strictly for advanced divers who possess solid buoyancy control. Visibility fluctuates between 10 and 30 metres. Access is exclusively by boat, and divers must remain alert for heavy boat traffic in the area. A surface marker buoy is essential for all dives at this location to ensure safety in the open water.

Big Dos Amigos is a deep pinnacle and reef site located off Cocos Island, Costa Rica. Designed for advanced divers, the site features depths between 20 and 40 metres with an average of 25 metres. Strong currents and surge are defining characteristics, requiring confident drift technique and buoyancy control. Visibility varies from 10 to 30 metres. Access is strictly by boat, and the site is not suitable for snorkelling. Divers must be prepared for deep water conditions and potential cold thermoclines. Always carry a surface marker buoy, as currents can displace divers from the boat during ascent.

Punta Maria is a high-energy wall and reef site located 500 metres off Cocos Island. This advanced dive features depths ranging from 20 to 36 metres, with an average depth of 25 metres. Divers encounter strong currents, surge, and variable visibility between 15 and 30 metres. Thermoclines frequently cause temperature drops within the 25 to 28C range. Due to the exposed nature of the site and unpredictable current shifts, boat entry is required. Divers must possess advanced certification and strong buoyancy control skills to navigate this remote environment. Always confirm conditions with your liveaboard crew and maintain a surface marker buoy for safety during drift dives.

Silverado is a pinnacle and reef site located off Cocos Island, Costa Rica, offering depths between 10 and 15 metres. Accessible only by boat, this site features a moderate current that requires careful navigation around the pinnacle structure. Visibility varies significantly from 5 to 30 metres. Divers may encounter species including wrasses, yellow-edged morays, whitetip reef sharks, Panamic green morays, guineafowl puffers, Pacific trumpetfish, spotted boxfish, groupers, redlip parrotfish, triggerfish, spiny lobsters, sea stars, and combers. Water temperatures remain warm, ranging from 27 to 30 degrees Celsius. Due to the moderate current and potential for shifting directions, this site is best suited for intermediate divers.