Book Now Name(Required) First Last Email(Required) I think I'll get to Koh Tao on the following date…(Required) I'm interested in the following diving… ***Promotion Discounts Applied on Arrival***Don't Know Yet, I'm New to DivingTry Scuba Diving 2,500 THBOpen Water Course – 11,000 THBScuba Refresher – 1,500 THBExplorer 30 (Advanced) – 10,000 THBFun Diving (1-Day, 2-Dives) – 1,900 THBFun Diving Package (6 Dives) – 5,400 THBFun Diving Package (8 Dives) – 6,800 THBFun Diving Package (10 Dives) – 8,000 THBNitrox Course (Dry, No Dives) – 5,500 THBNitrox Course (2 Dives on Nitrox) – 8,500 THBDeep 40 – 8,500 THBDeep 40 + Nitrox – 13,000 THBMaster Rescue Diver – 15,500 THBSidemount Diver – 14,000 THBI Want to Become a Divemaster!I Don't See What I'm Looking For. Help?Choose a course or get in touch to learn more! I'd love to stay at Hydronauts while I'm in Koh Tao! I'm interested in the following type of room…-select a room type-Mixed Gender AC Dorm Bunk BedMale Only Fan Dorm BunkFemale Only Fan Dorm BunkSuperior Double Twin Fan RoomSuperior AC + Fan Double RoomDeluxe AC + Fan Family RoomMonthly Fan BungalowWe offer rooms from single-gender to mixed dorms, queen rooms, family rooms, and bungalows for weekly or monthly rent! Rooms are subject to availability. Need some more information? Have a question? Here for another reason?Great! We’d love to help! Drop us a note below and someone on our team will be in touch in 12-24 hours. NOTE: All promotion discounts will be processed in person at final checkout. PhoneThis field is for validation purposes and should be left unchanged. Why Choose Hydronauts? RAID Instructors Our experienced instructors are hand-picked, highly trained, and passionate about scuba diving. We tailor each course and dive to your unique needs. Beachfront Diving Resort Southwestern-facing diving resort including a hotel, purpose-built training pool, restaurant, dive boat, and beach bar. We offer diving & accommodation packages for every budget. Guaranteed Small Groups We guarantee small groups of no more than four students to an instructor or dive guide so that you get the individual attention you deserve. State-of-the-Art Equipment We choose to dive and teach in Backplate & Wing BCD with a Long-hose, Short-hose regulator configuration favored by technical divers. Dive Anywhere in the World Upon completion of your RAID scuba diving course, you will be issued with an e-certification card that recognizes you as an internationally certified scuba diver. Low Carbon Footprint We make every effort to reduce our footprint and use of paper and plastic. All our course materials are hosted online giving you access for life.