This dive site, Koh Khrock, also known as “mortar” in English, is a private island located approximately 2 kilometers from Koh Larn in Chonburi, Thailand. Divers can explore this site either by starting a hard coral dive directly from the beach or by experiencing a drift dive along the island's perimeter. There is no specific historical information provided for this site, but its unique characteristic of being a private island lends it a serene charm.
Koh Khrock is renowned as a sanctuary for turtles, which can often be spotted, sometimes even sleeping at depths of around 6 meters. The vibrant hard coral formations throughout the site host a rich array of marine life. Divers will delight in observing numerous sea anemones, home to charismatic clownfish, along with various other reef fish species.
The best time to visit this dive site for optimal conditions is typically during Thailand's dry season, from November to April, when the seas are calmer and visibility is generally at its best. Divers should look out for sleeping turtles as a highlight. Its shallow depths make it ideal for beginners, and both snorkelers and freedivers will find the diverse marine life and accessible conditions highly enjoyable.

