Boulder City in the south of The Similan Islands of Thailand is a challenging yet exciting PADI scuba diving site. With crystal clear and nutrient-rich tropical waters, divers can see a wide range of marine life ranging from the small and shy Jawfish (endemic to the archipelago) to the majestic but harmless whale shark. Exactly which of the more than a dozen dive locations in the Similans offer the best scuba diving in Thailand is a matter of opinion, taste, and also depends on the water conditions on the day of diving.
