Wat Phu Khao Kaew
Si Phan Don (Four Thousand Islands)
About 5km northeast of Muang Saen, Wat Phu Khao Kaew was built on the site of some Khmer ruins. It is believed to be home to a naga, though the entrance to its lair is covered. Look for some boulders leading to a path up to the temple on the eastern side of the hill.