Blue Planet divers can offer to their guests liveaboard trips starting from Khao Lak which cover most popular northern sites of the Andaman Sea, including similan Islands, Richelieu Rock, Surin Islands & Koh Bon. (blueplanetdivers.net)
Dive No. 2 took place at North Point, the most northern site in Similan, a location dominated by huge granite boulders. (liveaboards.dive-the-world.com)
The two other northern sites would be along the town of Esopus shoreline. (dailyfreeman.com)