Scuba Diving and Snorkeling around Koh Samui
Concierge.com's insider take:
Scuba diving enthusiasts flock to the reefs surrounding Koh Samui, especially around Ang Thong National Marine Park. The preserve's northern islands, like Koh Wao, Hin Nippon Yai, and Lek, have the clearest water and best diving. Twenty documented dive sites cover all levels two-and-a-half hours by boat north of Samui at Koh Tao. The most experienced come to free dive, which means going under without tanks or scuba gear to swim with whales and dolphins. Do it only if you've received some training; Apnea Total (Sairee Beach, Koh Tao, 66-8-7813-2321) runs free-dive classes and excursions.