This dive site centers around the famous Koh Haa Lagoon, offering access to several distinct areas including the Cathedral and Chimney. Known for its crystal-clear waters and white-sandy beaches, the site provides easy navigation around stunning karst islands and beautiful reefscapes. While no specific history is provided, its natural formations make it a unique and captivating underwater experience for all divers.
The marine environment at Koh Haa Lagoon boasts pristine corals and a remarkable variety of marine life. Divers can expect to encounter everything from super-macro subjects like nudibranchs and crustaceans, making it a macro photography paradise, to larger fish, potentially including species often referred to as 'the largest fish in the sea' like whale sharks, and various reef fish and possibly turtles.
Koh Haa Lagoon is a photographer's dream due to its stunning visibility, diverse subjects, and picturesque underwater landscapes. It is suitable for both scuba divers and freedivers, with its shallow lagoon being perfect for snorkelers. The site offers rich experiences year-round, but specific best times to visit for certain marine life are generally aligned with the dry season in Thailand (November to April).

