Big Blue Diving is one of Thailand’s most established and respected dive centers, having been operating since 1996. Recognized as the world’s largest SSI Diamond Instructor Training Center, the center offers world-class scuba diving experiences on Koh Tao. With over 25 years of experience and exceptional Google reviews at 5.0 rating, Big Blue is known for its highly qualified instructors, modern equipment, state-of-the-art dive boats, and comprehensive facilities.

It operates with precision and professionalism while maintaining a friendly atmosphere. The center has trained over 150,000 students and is celebrated for consistent safety standards and marine conservation efforts.