A road trip along the Thai side of the Mekong River from Khong Chiam in Ubon Ratchathani province to Chiang Khan in Loei province takes you through parts of Thailand’s Isan region that are not often visited by travellers from overseas. There are many scenic national parks to visit along the way, and a memorable but somewhat dangerous mountain climb in Bueng Kan province that can be tackled by older travellers who are reasonably fit.