About Us

Welcome to Ko Hai Divers (aka Rainbow Divers), the first dive school on Ko Hai (Koh Ngai), established in 1995. We offer a relaxed and friendly atmosphere and look forward to showing you some of the best dive spots Thailand has to offer. With us you can do all PADI recreational programmes from Discover Scuba Diver to Divemaster. All in small groups.

Our Dive shop is open every year from beginning of November to end of April. This period offers the best weather and diving conditions off the west coast of Thailand. We use mainly Scubapro equipment and 12 l aluminium tanks. Besides half day tours around unspoilt and beautiful Koh Ngai and Koh Waen we also offer full day trips to the famous dive sites around Koh Rok, Koh Haa and the pinnacles of Hin Daeng and Hin Muang.

We use longtail boats or a big 18 metre wooden dive boat with toilets, sundeck and shaded area for our trips. 

We speak English, German, Spanish, Italian and Dutch.