sunset view from don det-don khon historic railway bridge,crossing the mekong river the 4000 islands,champasak province of

laos four islands sunset landscape historic bridge mekong french river colonial 4000 southern sun travel foliage khon khone countryside landscapes rural south traversing southeast asia trees connecting island si phan archipelago champasak running waters views viewpoint view islet islets water reflections tropical sunlight landmark riverside riverbank det remote sky