About Emerald Cave (Koh Muk)
A sea cave on Koh Muk in Trang: you swim about 80 metres through a dark tunnel to reach a hidden beach and lagoon enclosed by cliffs. Go at low tide.
Highlights
- Swim through a dark tunnel
- Hidden lagoon beach
- Low tide only
In depth on our site
Emerald Cave (Koh Muk) also has a full entry on our islands page, with more photos and tips.
When to visit Emerald Cave (Koh Muk)
Month by month: good, OK or less good, based on average rain and temperature (Krabi climate).
Best months: January, February, March, December.
- January Dry: about 32 mm on 12 rain days, max 33°C (Krabi climate)
- February Dry: about 19 mm on 6 rain days, max 34°C (Krabi climate)
- March Dry: about 57 mm on 8 rain days, max 34°C (Krabi climate)
- April Some rain: about 105 mm on 15 rain days, max 34°C (Krabi climate)
- May Rainy season: about 215 mm on 20 rain days, max 33°C (Krabi climate)
- June Rainy season: about 214 mm on 19 rain days, max 32°C (Krabi climate)
- July Rainy season: about 216 mm on 20 rain days, max 32°C (Krabi climate)
- August Rainy season: about 230 mm on 20 rain days, max 32°C (Krabi climate)
- September Rainy season: about 280 mm on 21 rain days, max 32°C (Krabi climate)
- October Rainy season: about 298 mm on 22 rain days, max 31°C (Krabi climate)
- November Some rain: about 148 mm on 19 rain days, max 32°C (Krabi climate)
- December Dry: about 59 mm on 17 rain days, max 32°C (Krabi climate)
Source: climate figures from our weather page: Weather and climate.
Practical information
- Location
- Trang · 7.36922, 99.28377
- Type
- 🏝️ Island / bay
- Best time of day
- Morning, before the heat and crowds
Opening hours and entry fee: no reliable source found, so not listed. Ask on site or check the official website.
Emerald Cave (Koh Muk) on the map
Pinch to zoom; tap a point for more info. Open circles: approximate location.
