Thailand · Koh Haa group
Koh Haa Cathedral
Also known as: Koh Haa Yai #5
Best time to dive
Season varies - confirm locally
What you might see
- BarracudaLikely
- Ghost pipefishLikely
- NudibranchLikely
- Sea turtlePeak season
- Whale sharkPossible
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Technical
Snorkelling
Not a snorkel site - Not suitable - overhead swim-through requires scuba; snorkelers stay on the surface lagoon nearby
Safety notes
Overhead environment (silt-out risk), need for torch and buoyancy control, narrow swim-through sections
Permits & fees
Within Mu Ko Lanta National Park area - park fee commonly cited as Thai 240 THB / Foreigner 600 THB per day (verify current rate with operator)
Permits and operators change - confirm before booking.
Location
Nearest hub: Koh Lanta
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.