Excellent international dive school, cater for all main European languages, very experienced and friendly. Situated in Chalok Ban Kao away from all the mass-market dive shops in Sairee. They offer all diving level courses, Padi & SSI and free diving courses. They have the biggest, newest and safest boat on the island. I can wholeheartedly recommend them, my wife and I completed our OW & AOW with them, June 2013.