It`s a diving school with the best equipment in koh tao! here you get technical equipment and brand new diving computers. The instructors and dive masters at Hydronauts are very nice and helpful. Your diving group won`t be bigger than 4 persons per instructor. It`s a bit more expensive but much better than the bigger schools at koh tao. I never saw a better diving school so far. Also if you do a fundive you have to put the equipment together by your own. So you check your own stuff to be safe under water and know everything about your equipment.
Address
Unnamed Road, Tambon Ko Tao, Amphoe Ko Pha-ngan, Chang Wat Surat Thani 84280, Thailand