Skip links


Welcome to Bigbubble Diving School, the premier diving school in Koh Tao, Thailand.



After completing a physical readiness check, you’ll begin by watching a series of short videos as an introduction to scuba diving course. The session will take place inside a cool and relaxed classroom. No worries if you’re feeling a little tired or sleepy as Big Bubble will be providing you with some complimentary beverage refreshments.

Each morning will begin with some classroom theory, tackling different topics like dive equipment, body physiology, and the element that you should be most aware of the environment.

The afternoon will be focused on sharpening your dive skills. For Open Water Diver skill, we will head to the training pool where you will learn and practice valuable skills such as underwater breathing techniques, mask clearing, efficient buoyancy technique, and how to act in case of an emergency. Once we move to our spacious and comfortable boat, your instructor will demonstrate how to set up and get geared up in your equipment as well as how to perform a pre-dive safety check before entering the water.

Once you have completed the theory and skill work, we will begin doing the open water dives course where you will experience the unique feeling of weightlessness as you float around in the beautiful underwater world. Your instructor will remain close by to assist you. During these dives, you’ll explore and marvel at the diverse marine life and beauty of the coral reef. When you complete this course, you will receive a certificate that allows you to continue exploring the underwater world to depths no greater than 18 meters with your friends.