Take you to see the beauty of coral reefs. "Koh Yang" is an island close to Koh Rawi and is also an island that can snorkel around the coral reefs. "Koh Yang" is a hard coral as coral. soft, such as lettuce coral, brain coral, and staghorn coral Then take you to see the beauty of the corals at Ao Song. This area will be hard corals as well as soft corals such as radishes, brain corals, staghorn corals, giant clams, and schools of blue fish. That guarantees that diving lovers will not be disappointed for sure.