Don Khong (Khong Island) is the largest island of the Mekong River’s Si Phan Don archipelago, but even sleepier than uber-tranquil Don Khon and Don Det. Most tourist and leisure activities are centred on the town of Muang Khong, while Muang Saen on the island’s western shore is the spot to go for sublime sunset views. A network of walking and cycling trails criss-cross Don Khong and allow visitors the chance to experience its welcoming local villages, enthralling Buddhist temples, luminously green rice paddies, and spell-binding river views.