Having not done any research about dive schools in Koh Tao before arriving, my husband and I are counting our lucky stars that we stumbled into Master Divers on our first evening on the island. We couldn't have picked a better place to complete our 4 day open water SSI course. Before signing up to the course, we were given all the details from equipment to course content without ever feeling pressurised into anything. All groups are kept to a maximum of 4 people to ensure a great and personal experience which when you are in the water surrounded by many groups from other schools is really reassuring. Before going out in the water, we were shown the equipment we would be using and felt very comfortable and well kitted out. Our instructor made us feel really relaxed during the dives and we always felt in good hands. The general vibe of Master Divers is very welcoming and friendly. The staff are very professional and honest whilst clearly enjoying their jobs and making sure everyone is happy and enjoying the experience. We would recommend this dive school without any hesitation and hope to return in the near future. Thanks to everyone at Master Divers!