Koh Haa
Five islets around a lagoon of impossible clarity. The Cathedral — a cavern lit by shafts of sun — is one of the most beautiful rooms in the Andaman.
Highlights
- The Cathedral cavern
- Lagoon so clear it feels like air
- Chimney swim-through
What you'll see
Photos: (c) portioid, some rights reserved (CC BY-SA), Floppythresher123, portioid via Wikimedia Commons · licences
Koh Haa, in brief
- How deep is Koh Haa?
- Koh Haa ranges from 5 to 35 metres and is suited to intermediate divers. It is a cavern dive with mild current.
- When is the best time to dive Koh Haa?
- The season is Nov – Apr. Expect 20–35 m visibility and 28–30 °C water.
- How do you get to Koh Haa?
- Day trip · 2.5 h · or liveaboard. It is in the Koh Lanta area at 7.4236° N, 98.8915° E.
- What marine life can you see at Koh Haa?
- Hawksbill turtle, Octopus, Ghost pipefish, Whale shark (rare). Highlights include the cathedral cavern; lagoon so clear it feels like air; chimney swim-through.
Gear we'd bring to Koh Haa
Night diveBigblue AL1200NP Torch
Bright enough to find the cuttlefish, small enough to live in a BCD pocket all trip.
Widest viewTUSA Paragon Mask
Whale sharks at Richelieu Rock go past fast. The Paragon's field of view is the difference between seeing it and seeing its tail.
Permanently sealedSeaLife Micro 3.0
Nothing to flood. Sealed at the factory, so the only thing you think about at Anemone Reef is the clownfish.
Trips that diveKoh Haa
- Liveaboard
Southern Liveaboard · Hin Daeng, Koh Haa, Phi Phi
The route south: manta pinnacles, the Cathedral cavern, and Phi Phi walls. Runs when the Similans are closed, too.
- Day trip
Koh Haa Day Trip from Lanta
Three dives in the clearest water in Thailand, including the Cathedral cavern. Best combined with a couple of nights on Lanta.
