How to choose a good surf school or instructor in Sri Lanka?

Look for instructors with proper qualifications, good safety practices, and experience teaching your level. Some of the best instructors are local surfers who have been teaching for years rather than big commercial schools. Small group or private lessons are usually more effective than large classes. Check that they provide appropriate boards for your level and that the teaching location matches your ability. Reading recent reviews from students at your level helps. Some schools have good reputations for safety and progression. Weligama and certain south coast spots have established surf scenes with multiple options. It's worth observing a class or talking to current students before committing.