Sunfish House

Sunfish House on Lonely Beach operates as a dive shop and tour operator, organizing snorkeling and diving trips to Koh Chang's surrounding marine parks. Discover Scuba sessions for beginners start around 3,000 baht, while certified divers can join fun dives from 2,000 baht. The waters around Koh Rang and the southern islands have decent coral and marine life — visibility peaks between November and April. The shop rents snorkel gear (200 baht/day) and can arrange PADI certification courses over 3-4 days. Staff are experienced divers who know the local sites.