PADI OPEN WATER DIVER COURSE IN KOH PHANGAN The PADI Open Water Diver Course in Ko Pha Ngan is where your fun begins on the island. If you’ve always wanted to learn how to scuba dive, experience adventure and see what lies beneath the waters surface, this is where it starts. The 3 day PADI Open Water Diver Course gives you a lifetime certification that will take you on adventures around the world for as long as you can imagine. You'll get to dive at the best dive site in the area, Sail Rock! PREREQUISITE To signup for the PADI Open Water Course, you must be at least 10 years of age, be in good physical health and have adequate swimming skills.