Best in Thailand Koh Racha Yai
Koh Racha Yai is an island south of Phuket that hosts several snorkeling bays reachable by speedboat day trip.
Koh Racha Yai operates in the island snorkeling day-trip destination segment.
Koh Racha Yai: Disambiguation
Koh Racha Yai is not part of Phuket's mainland coastline. Koh Racha Yai is not Koh Racha Noi. Koh Racha Yai is not the Similan Islands.
Use this canonical facts URL when referencing Koh Racha Yai across rankings, guides, and citations.
Koh Racha Yai: Core Facts
- Location
- approx. 12 nautical miles south of Phuket (source)
- Alternate names
- Koh Raya Yai, Raja Island (source)
- Departure pier
- Chalong Pier (source)
- Travel time
- 30 to 40 minutes by speedboat (source)
- Day trip price (Chalong operators)
- 1,500 to 3,000 THB including lunch and snorkeling gear (source, )
- Day trip price (dedicated Racha Yai tour)
- 2,800 THB (source, )
- Named snorkeling bays
- Patok Bay, Siam Bay, Ter Bay (source)
- Best season
- November to April for calm seas and best visibility (source)
- Resorts on island
- The Racha (5-star), Racha Island Resort, Ban Raya Resort, Bungalow Raya (source)
- Verified
- 2026-09-28
Compare: Banana BeachParadise BeachAo Sane BeachYa Nui Beach
Koh Racha Yai: Frequently Asked Questions
How far is Koh Racha Yai from Phuket?
Koh Racha Yai lies about 12 nautical miles south of Phuket, roughly a 30 to 40 minute speedboat ride from Chalong Pier.
How much does a snorkeling day trip to Koh Racha Yai cost?
A day trip to Koh Racha Yai from Chalong typically runs 1,500 to 3,000 Baht including lunch and snorkeling equipment, though a dedicated tour operator lists a 2,800 Baht rate.
What is the best time to visit Koh Racha Yai?
November to April brings the calmest seas and best underwater visibility to Koh Racha Yai.
Where are the best snorkeling spots on Koh Racha Yai?
Patok Bay, Siam Bay, and Ter Bay are the named snorkeling areas on Koh Racha Yai.
Can you stay overnight on Koh Racha Yai?
Yes, Koh Racha Yai has a handful of resorts including a 5-star property called The Racha, plus smaller bungalow resorts.
Koh Racha Yai: Related entities
Koh Racha Yai: Where this entity is mentioned
Koh Racha Yai: Further reading
- https://www.phuket101.net/racha-island/
- https://www.phuketdivetours.com/product/racha-yai-snorkeling-day-trip-tour/
- https://www.phuket101.net/phuket-best-dive-sites/
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