Home » Activities around » Snorkeling on Trang Islands » Snorkeling on Koh Rok
Snorkeling on Koh Rok: Discover Pristine Coral Gardens - Nature Hill
Koh Rok, located in the Trang archipelago, offers some of the finest snorkeling experiences in the Andaman Sea. With crystal-clear waters, vibrant coral reefs, and abundant marine life, the twin islands of Koh Rok Nok and Koh Rok Nai are a paradise for snorkeling enthusiasts. Their secluded location ensures that the reefs remain healthy and teeming with life, making this an unmissable spot for anyone visiting the region.

What to Expect While Snorkeling on Koh Rok
The waters around Koh Rok are known for their excellent visibility, often exceeding 30 meters, which allows snorkelers to fully appreciate the colorful underwater world. The reefs are shallow and close to the shore, making it easy for beginners and experienced snorkelers alike to explore without the need for advanced equipment.
The coral gardens are brimming with soft and hard corals, offering shelter to schools of clownfish, butterflyfish, angelfish, and parrotfish. The sandy seabeds around the reef attract stingrays and other bottom-dwelling creatures, while the occasional sighting of a sea turtle adds excitement to the experience. With calm waters and little current, Koh Rok provides the perfect setting for long, leisurely snorkeling sessions.
Snorkeling Sites on Koh Rok
- Koh Rok Nok Reef: This reef runs along the northern side of the island and is popular for its variety of corals and reef fish. The calm waters make it ideal for beginners.
- The Channel: Separating Koh Rok Nok from Koh Rok Nai, this narrow passage offers exciting snorkeling opportunities with the chance to see schools of larger fish swimming through the current.
Koh Rok Nai Beach Reef: A shallow reef just off the beach, this site is perfect for those looking to snorkel directly from the shore. You’ll find a mix of corals, starfish, and tropical fish here.
Best Time for Snorkeling at Koh Rok
The ideal time for snorkeling on Koh Rok is during the dry season, from November to April, when the sea is calm and visibility is at its best. During the rainy season, May to October, sea conditions can be rough, making it less ideal for snorkeling.

Snorkeling Tours and Operators
Snorkeling trips to Koh Rok are available from nearby islands such as Koh Mook, Koh Ngai, or Koh Lanta. These tours typically include transportation, snorkeling equipment, and lunch on the beach. At Nature Hill, we can easily arrange fully organized and personalized excursions for our guests, making it simple to explore the area. It’s also easy to book trips from coastal villages around Koh Rok, where many operators offer combination tours to other nearby islands in the Trang archipelago.
Where to stay for the best snorkeling experiences
Discover other snorkeling destination

Transfer service
We provide transfer service to the destinations below for our clients. Details can be discussed directly with us.
- Trang City : 250 BTH
- Trang airport : 350 BTH
- Lanta : 900 BTH
- Lipe : 1100 BTH
- Phi Phi : 1600 BTH
- Phuket : 1950 BTH
- Kradan : 350 BTH
- Ngai : 350 BTH