This island is situated to the northeast away from Ko Mak. In the past, the area had an abundance of Kradad trees (paper trees); hence, the name of the island. This island is notable for the fact that it is the only island in Thailand to be issued a land title deed during the period of King Rama V as a measure to protect the island from French colonization. Ko Kradad is famous for its white long sandy beach and wonderful coral reefs.
- Ko Kham
- Ko Mak