Nong Khiaw is a village in the Luang Prabang Province of northern Laos. It’s on the Nam Ou River, where tour boats and kayaks travel. Close by, narrow footpaths wind through jungle and ascend steep limestone cliffs for expansive views. Tham Pha Thok is a series of limestone caves that served as a shelter during the Second Indochina War. Small villages dot the nearby forested mountains and rice fields.