Khao Lak, Thailand
MC Stingray is a 23-metre custom-built dive catamaran that stays out at the Similan Islands, Koh Bon, Koh Tachai and Richelieu Rock all season. You reach her by speedboat from Tap Lamu pier in Khao Lak and choose how many nights to stay. Overnight guests join the day trip dives and also get exclusive early morning and night dives, for up to four one-hour dives a day. Only 8 overnight guests in 4 en-suite cabins with bunk beds, a wide dive deck and a large covered sun deck.

Gear rental: Aqualung rental gear from the Sea Bees dive center: full set 750 THB per day, premium set 1,300 THB, dive computer 300 THB, 15 litre tank 150 THB. Reserve in advance.
Payments: Prices in THB per person. The national park fee (700 THB per diver per day) is paid on site by card or cash.