Ban Gioc waterfalls
River Quay Son, some 300m/984ft wide and 50m/164ft high, forms the most well-known and the most stunning waterfalls of Vietnam, Ban Gioc falls. The water accumulates in tiers of pools in a rocky landscape pitted with rice paddies, ideal for swims at the foot of the fall. The border between China and Vietnam is at the centre of Song Quay Son and Vietnamese boats can only navigate on half of the river. The border zone is accessible with a permit.