About 4 kilometres from Chiang Saen on the road to Chiang Khong is Phra That Pha Ngao. There is a bell shaped Chedi standing on large boulders. Nearby is a Wihan where several old Chiang Saen-style Buddha statues are enshrined. There is also a viewing point to enjoy scenery of the Mae Khong and of Chiang Saen itself.
- Chiang Khong
- Phra That Doi Pu Khao