Overview
Koh Tas is a small uninhabited islet close to Sihanoukville, popular for diving and snorkeling thanks to its preserved coral and reef fish communities. Depths of 5-15 m suit beginners, and PADI Open Water courses run here frequently. Day tours typically combine Koh Tas and Koh Rong with a BBQ lunch, and visibility is best in the afternoon. Diving USD 50-80; snorkeling tours USD 20-30. About 30 minutes by boat from Sihanoukville.
Travel Tips
Visibility is best in the dry season (Nov-Apr). Don't wear fins on the coral — protect the reef.
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🇰🇷 Tips for Korean Travelers
Practical info for Korean travelers heading to Sihanoukville, Cambodia from Seoul (ICN).
Korean Passport · Visa
Check visa rules for Cambodia on the Korean MOFA travel advisory site before flying — visa-free, visa-on-arrival or e-visa rules change often. Keep at least 6 months of passport validity.
Flight from Incheon (ICN)
Compare direct and connecting flights from Incheon (ICN) to Sihanoukville on Skyscanner or Google Flights. Early-morning departures from Korea are usually the cheapest option.
KRW ↔ Local Currency
Check the live FX widget above for the latest KRW rate. Korean travel cards like Travel Wallet, Hana EZ and Toss FX offer free local ATM withdrawals and competitive rates.
Korean Community · Korean Food
Many cities have an active Korean community in Sihanoukville with Korean restaurants, mini-marts, and Korean-speaking guides. Search Naver Cafe or KakaoTalk open chats for "Sihanoukville 한인" before you go.
Attractions near Koh Tas Diving Site
Tap a pin on the map to jump to that attraction.
Kbal Chhay Waterfall
A tiered waterfall near Sihanoukville, popular with locals for picnics.
📍 7.5km away
Independence Beach
A 1.5 km palm-lined beach in front of the historic Independence Hotel.
📍 7.6km away
Wat Leu (Upper Pagoda)
A gilded Buddhist temple on a hill overlooking Sihanoukville.
📍 7.9km away
Serendipity Beach
Sihanoukville's main beach and the launch point for island ferries.
📍 10.0km away
Koh Rong Samloem
Quieter and more pristine than Koh Rong — a Cambodian paradise island.
📍 14.3km away
Bamboo Island (Koh Russey)
A small island off Sihanoukville known for quiet white-sand beaches and snorkeling.
📍 20.0km away
Koh Rong
A hidden-gem Cambodian island of crystal-clear seas and lush tropical jungle.
📍 24.2km away
Ream National Park
A nature park where you can experience mangrove forests and coastal ecosystems.
📍 26.5km away
Bokor National Park
A misty mountaintop national park with eerie French colonial-era ruins.
📍 70.4km away
Kampot
A riverside town famous for its world-class pepper and French colonial buildings.
📍 80.1km away
Things to Do in Sihanoukville
Koh Rong Day Boat Tour
Day boat tour from Serendipity Pier hopping between Koh Rong and Koh Rong Samloem. Includes 3-4 snorkeling stops, an island lunch, and beach time.
Bioluminescent Plankton Tour
Night tour on moonless evenings to see bioluminescent plankton light up the sea like stars at Koh Rong. A magical experience as the light traces your hand through the water.
Ream National Park Mangrove Boat
Eco tour by small boat through Ream National Park's mangroves, spotting monkeys, eagles, and local fishermen at work. Includes lunch and swimming at a quiet beach.