House Reef in Colombo is a shallow marine site suitable for beginner divers. The reef sits at an average depth of 6 metres, making it an accessible location for shorter dives, typically lasting around 30 minutes. Access to the site is by boat. Conditions vary, with visibility ranging from 3 to 10 metres and mild currents. Water temperatures remain consistent throughout the year, generally between 28C and 30C. Divers should be aware of sharp coral present at the site. Local facilities include air fills, equipment rental, and guided tours.

Medhufaru Wreck is an artificial reef located 6260 metres off the coast of Colombo. This site is suitable for advanced divers due to its depth, which ranges from 14 to 30 metres with an average of 28 metres. Access is strictly by boat. Divers should be prepared for moderate currents and visibility typically between 10 and 20 metres. The environment supports a variety of reef fish and invertebrates common to the region. Given the depth and potential for entanglement, this site requires careful planning and experience. Water temperatures remain consistent, ranging from 27 to 29 degrees Celsius throughout the year.

The MV Thermopylae Sierra is a shipwreck dive site located off the coast of Colombo, Sri Lanka. Resting at depths between 5 and 9 metres, the wreck provides a shallow environment suitable for divers. The site is accessible by boat, with water temperatures remaining consistent throughout the year, typically ranging from 28C to 30C. Due to the shallow nature of the wreckage, it is an accessible site for those with appropriate training. Divers should be aware that conditions at this coastal location can vary, and local dive operators should be consulted for current site status and safety information.

Air Filling Station is a coastal dive site in Colombo, Sri Lanka, featuring a combination of natural reef and artificial reef structures. The site is suitable for beginner divers, offering warm water temperatures between 28 and 30 degrees Celsius and mild currents. Shore entry requires caution due to surf and sharp coral or rocks underfoot; reef boots and gloves are recommended. Divers should remain vigilant for boat traffic when surfacing. The site is supported by an on-site facility providing air fills and equipment rental, allowing for convenient access to the water.

Dakune Gala is a reef site located off the coast of Colombo, Sri Lanka. This dive is suited for intermediate divers, with depths consistently between 14 and 15 metres. Access is by boat, and divers should be prepared for moderate currents. Visibility at the site typically ranges from 5 to 10 metres. Water temperatures remain warm throughout the year, between 28 and 30 degrees Celsius. The reef structure features sharp coral and rocks, requiring careful buoyancy control to avoid contact with the seabed. Divers can expect to encounter typical reef fish and invertebrates associated with this habitat.

Y-Gala is a deep reef site located off the coast of Bentota, Sri Lanka. The reef structure sits at depths between 20 and 28 metres, though the seabed can reach 40 metres. Divers must be prepared for strong currents that frequently sweep across the area, requiring solid buoyancy control and drift diving experience. Access is by boat only, and visibility typically ranges from 5 to 10 metres. Water temperatures remain consistent between 27 and 29 degrees Celsius throughout the year. Due to the challenging current conditions and depth, this site is suited for intermediate divers. Divers should exercise caution near the seafloor to avoid contact with sharp coral and rocks.

Barrakuda Point is a drift reef located off the coast of Bentota, Sri Lanka. The site features a reef structure spanning depths of 20 to 28 metres, with an average depth of 24 metres. Divers must be prepared for strong currents, which define the experience and require advanced buoyancy control. Visibility at the site fluctuates between 10 and 30 metres. Access is exclusively by boat, and divers should be aware of boat traffic hazards. Due to the significant depth and current conditions, this site is suited for advanced divers. Typical dives last approximately 45 minutes, and the use of a surface marker buoy is essential for safety during ascent.

Mada Gala is a combined reef and wreck site located 1000 metres off the coast of Bentota, Sri Lanka. Divers explore depths ranging from 20 to 26 metres. The site is characterised by strong currents and visibility typically between 5 and 10 metres, requiring confident buoyancy control. Due to the presence of sharp coral and stonefish, divers should exercise caution regarding hand placement. The site is accessible by boat only, with dives averaging 50 minutes. Water temperatures remain consistent between 27 and 30 degrees Celsius. The reef and wreck structure support a variety of regional reef fish and invertebrates.