Introduction to Coral Island (KoLan): Also known as Jinsha Island or Lan Island, it is about 7.5 kilometers away from the coast of Pattaya. The water quality is clean, and the underwater biological world under the water depth of several meters can be seen through. There are large areas of beautiful coral on the seabed not far from the west coast of the coral island. You can take a glass-bottomed sightseeing boat to enjoy the wonders of the seabed, or you can dive into the water to get a closer look.