Terrain: riverbed - loose sand, pebbles and shrubs. Use mountain or cross bike with puncture-resistant tires (or extra layer of inner tubes). Flats are very likely!

• 地形：河床-松软的沙土地，鹅卵石，灌木。我们建议使用山地车，防刺穿外胎或有较高防刺穿功能的内胎。