1, Haikou Cycling Group: Haikou Cycling Group is a cycling group spontaneously organized by Haikou citizens. It has many routes to choose from, and its activities are rich and varied, which is highly recommended by local people.

2. Haikou mr. six Club: Haikou mr. six Club is a social group whose main activity is cycling. It is suitable for middle-aged and elderly people who like cycling, and it is a major local feature.