Koh Haa Yai (Cathedral)
About Koh Haa Yai (Cathedral)
Koh Haa Yai is the largest island in the Koh Haa group and is known for three large caverns on its southwest side. Two of the caverns connect through a large round swim-through, and the biggest chamber is commonly called “The Cathedral”. Divers come here for cavern exploration and the chance to see small critters as well as occasional pelagic encounters on the western side.
Where Is Koh Haa Yai (Cathedral)?
Safety & Access At Koh Haa Yai (Cathedral)
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
The site includes caverns and a swim-through, creating an overhead environment.
Local Intel For Koh Haa Yai (Cathedral)
Community notes to help plan your visit.
Scuba
Features three large caverns and a connecting swim-through, including a large chamber known as The Cathedral.
Koh Haa Yai (Cathedral) Dive Conditions Planner
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Exposure Profile at Koh Haa Yai (Cathedral)
Directional shelter context for incoming swell.
Recent Logged Visits At Koh Haa Yai (Cathedral)
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Dive Spot Log Averages At Koh Haa Yai (Cathedral)
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Koh Haa Yai (Cathedral) Guide - Sources and Updates
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