Hong Kong has a long coastline that is full of twists and turns with many bays and beaches. Many of them are well sheltered by mountains nearby, as Hong Kong is a mountainous place. As a result, large waves seldom appear at the bays, making them suitable for human swimming. About half of the beaches suitable for swimming in Hong Kong are managed by the Leisure and Cultural Services Department (LCSD), and are officially referred to as gazetted beaches. A number of other beaches are privately owned or not gazetted, but are nonetheless publicly accessible.