Kohprab sails two routes between six ports in Thailand, mostly Mae Nam (Koh Samui), Chumphon (Lomprayah Pier) and Koh Tao. From Mae Nam (Koh Samui): Chumphon (Lomprayah Pier), Koh Tao and Koh Phangan. From Koh Tao: Donsak (Lomprayah Pier), Koh Phangan and Nathon (Koh Samui).