You may bring food when visiting Watphou. Wat Phou was built in the 5th century by the Khmer Hindus (Hindu) on a mountain top and sides of a blue waterfall. Peaks similar to the lingam symbol. This is a splendid work and very isolating in the Mekong valley. On arriving in the entrance, we were to visit Wat Phou museum, then walk through a large temple now only a few tracks then continue on the wide paved roads, decorative columns sides form of lingam stone, before the two big temples with heavy sandstone blocks fitted together tons by the mortise. White porcelain shade trees are a thousand year old stone walkway leading to the main temple at the top of a cliff high level 77 to enter a hun suction air about dark and mysterious.