<p>Does anyone have experience diving in Koh Tao? My D is currently volunteering in northern Thailand and will be heading to Koh Tao to dive in a few weeks. She is already certified (to the PADI Rescue Diver level) but her friend will be getting her Open Water Certification. There are many options on the island but she seems to have narrowed it to Simple Life, Ban’s Dive Resort and Coral Grand. She’s asked me for my opinion and I have looked at Tripadvisor but any personal experiences would be welcome! Thanks.</p>