For several years, Royal College has dominated the sport of diving. The school has produced many international-level divers, who have represented the country in the Olympic Games, World Championships, Commonwealth Games, Asian Games, and South Asian Games.
The College diving team has emerged victorious in all the diving meets held in Sri Lanka for the past few years and has also produced many talented national diving champions who have brought credit and respect to the country. The team has improved in leaps and bounds to dominate all diving meets.