Famous for its fine sand, Gwangalli Beach stretches 1.4km (almost a mile). When Japan colonized Korea in the last century, this beach was used to teach elementary and junior high school kids how to swim during summer vacation. You can rent water skis or jet skis, or even go windsurfing. The beach draws its share of crowds during the summer and sports an outdoor stage where the Busan Ocean Festival is held each year. The beach is open 24 hours and is most popular in July and August.