A warm welcome to Similan Dive Center We’re not an automated booking site. Your booking gets personally handled by our local diving experts. Richelieu rock diving day trip inquiryName *FirstLastEmail *When would you like to start? *Richelieu rock: Sunday, Monday, Wednesday, Friday ---- Koh Bon: Tuesday, Saturday---- Koh Tachai: ThursdayNumber of guest? *1234567Comment or MessageMessageSubmit