Islas Pelonas is a shallow reef site located 1000 metres offshore from Playas del Coco. The site features rocky topography and is suitable for both diving and snorkelling, with an average depth of 3 metres and a maximum of 5 metres. Access is by boat only. Water temperatures are consistent, ranging between 27C and 29C throughout the year. Divers and snorkellers should be aware of moderate currents and exercise caution regarding sea urchins and sharp coral present in the area. A typical dive at this location lasts 45 minutes.

The Tortuga is an artificial reef wreck located 1000 metres offshore in the Papagayo Gulf. The structure extends from the surface to a maximum depth of 24 metres, with an average depth of 18 metres. Divers access the site by boat, encountering mild currents and visibility ranging from 10 to 25 metres. Water temperatures typically fluctuate between 24 and 27 degrees Celsius, though extreme, unpredictable thermoclines can cause rapid changes. The wreck provides a habitat for reef fish and invertebrates. Divers should be aware of entanglement risks within the structure and the presence of sharks. A surface marker buoy is recommended for all dives.

Punta Argentina is a diverse marine site located 3500 metres from the shore of Playas del Coco. The topography features a combination of reef, pinnacle, and cave formations. Divers and snorkellers can explore depths ranging from 10 to 28 metres, with an average depth of 19 metres. The site is accessible only by boat and is suitable for beginners. Conditions include moderate currents and visibility between 10 and 30 metres. Water temperatures typically range from 24 to 26 degrees Celsius, though cold thermoclines as low as 16 degrees Celsius are frequently encountered. Hazards include boat traffic and strong currents. Night diving is available at this location.

Playpen is a reef and artificial reef site located on the eastern side of Islas Pelonas near Playas del Coco. Situated between two islands, the site offers a sheltered environment suitable for beginners. Divers can expect depths ranging from 5 to 18 metres, with an average depth of 10 metres. Access is by boat, with the site located approximately 1000 metres from shore. Conditions are generally calm with mild currents, though surge can occur. Visibility fluctuates between 5 and 21 metres. Water temperatures typically range from 24 to 28 degrees Celsius, though seasonal variations and thermoclines may occur.

Sorpresa is a challenging reef and pinnacle site located 3000 metres off the coast of Playas del Coco. Designed for advanced divers, the site features depths ranging from 14 to 34 metres with an average of 25 metres. Access is strictly by boat due to the site's distance from shore and the presence of moderate to strong currents. Visibility is highly variable, fluctuating between 3 and 30 metres, and divers should be prepared for cold thermoclines that can drop water temperatures as low as 16 degrees Celsius. Given the potential for sudden current spikes, thorough pre-dive briefings and clear emergency ascent planning are essential for all visitors.

Estudiantes is a shallow reef located in the Papagayo Gulf, offering depths between 3 and 12 metres with an average of 8 metres. This site is suitable for beginner divers due to the mild currents and manageable conditions. Visibility fluctuates between 5 and 20 metres. Water temperatures remain consistent, ranging from 27 to 29 degrees Celsius. Access to the site is by boat only, and divers should exercise caution regarding sharp coral and rock structures. Maintaining proper buoyancy is essential to protect the reef. Typical dives last approximately 30 minutes.

Patrick's Point in Playas del Coco offers a diverse underwater landscape combining a natural reef, a pinnacle, and an artificial reef structure. Located 1609 metres from shore, this site is accessible only by boat. Divers typically explore depths between 12 and 25 metres, with an average depth of 18 metres. Conditions feature mild currents that can change rapidly, and visibility ranges from 10 to 30 metres. Water temperatures fluctuate between 24 and 27 degrees Celsius, with frequent thermoclines. While suitable for beginners, divers should remain aware of boat traffic and variable currents. Night diving is available, providing an alternative experience of the site's varied topography.

Chiliguaro is a sheltered reef located in the Papagayo Gulf, suitable for beginner divers. The site features depths ranging from 5 to 12 metres with an average of 9 metres. Access is by boat only, situated 5 kilometres from the shore. Divers should be aware of mild currents and variable visibility, which can fluctuate between 3 and 25 metres. Water temperatures remain between 27 and 29 degrees Celsius, though thermoclines may occur. Hazards include boat traffic, low visibility, and sharp coral structures. Guided tours are recommended to navigate the site effectively and manage buoyancy near the reef.