Open Water Scuba Instructor (OWSI)

An Open Water Scuba Instructor is a professional who teaches new divers the skills needed for safe underwater travel. They hold credentials from agencies like PADI or SSI. These instructors manage everything from beginner courses to advanced specialties in places like Koh Tao. A typical OWSI works at depths between 5 m and 18 m during student training sessions.

You should check their experience level before booking a course. I once saw a trainee struggle because the instructor lacked local knowledge of strong currents in Cebu. Always ask if the instructor has worked in your specific destination for at least two years. This ensures they understand local tides and weather patterns. Good instructors prioritize safety over speed during training.