Similan by Speed Boat Similan by Speed Boat , Phang Nga : The Similan Islands National Park is known for long white coral sand beaches, crystal blue waters, warm tropical nights and cooling breezes coming off the Andaman Sea. Adult THB 2,900 net / Child THB 1,800 net Tachai Island by Speedboat Tachai Island is lies half way in the middle between Koh Similan and Koh Surin. It can be reach in one and half hour from Thap-lamu pier in Phang Nga. Adult THB 3,250 net/person / Child 1,700 net/person Surin Islands by Speedboat Surin Islands are suited in the Andaman Sea away from mainland approximately 55 kilometers. Surin Island is consist of 5 Islands Adult THB 3,250 net/person | Child 1,500 net/person