Phou Iu Travel and Ecotourism Laos welcomes you to Luang Namtha, one of the most beautiful and diverse destinations in Laos. Tucked away in the mountainous northwest, Luang Namtha is known for its ecotourism activities in the Nam Ha National Protected Area, tours of the historic towns of Muang Sing and Vieng Phoukha, and impressive river journeys on the Nam Tha and Nam Ha Rivers.