
Koh Yak in the Koh Rang National Park is a beginner-friendly dive site in the eastern Gulf of Thailand, where the protected waters of the national marine park host some of the healthiest reef systems in the Koh Chang archipelago. With a maximum depth of fifteen meters and calm conditions, this site provides accessible diving amid marine environments that benefit from the park's conservation status. The Koh Rang National Park encompasses a group of islands southeast of Koh Chang, and the reef around Koh Yak represents the quality achievable when marine environments are properly protected. Hard coral coverage is notably better than at unprotected sites in the area, with diverse species creating complex reef structure. The park's restrictions on fishing and development have allowed the marine community to flourish. Fish populations within the park reflect the benefits of protection. Species are present in greater numbers and larger sizes than at comparable unprotected sites, and the overall ecosystem health is visibly superior. Schools of snappers and fusiliers are abundant, while reef fish including angelfish, butterflyfish, and wrasse provide constant color among the healthy corals. Koh Yak in Koh Rang National Park demonstrates the clear benefits of marine protection in the Gulf of Thailand. The combination of healthy reef, abundant marine life, and the beautiful island setting makes it a highlight of Koh Chang area diving and a compelling argument for conservation.
Forecast from Open-Meteo, updated every 15 minutes
Sign in to share your dive experience
Sign InGreat spot for advanced divers. Currents can be tricky but the marine life makes it worth it.
One of the best dive sites in the region. Highly recommended.