In the mountains of Doi Phu Kha are along route 1256 from Pua to Bo Klua 2 shrines to honour Chao Luang Phukha, the first ruler of what is now called Nan province. And next to this shrines is the famous Chompoo Phukha tree that blossoms in February. Once a year there is a festival to honour the spirits that protect the tree and to honour the old rulers of the Nan dynasty. Photo above and first under were made in 2021, the 3 last photos were made in 2018. There is parking right next to the shrines and there even is a toilet behind the shrines. There is no public transport going there. For more information about Nan province see Destination Travel Guide Nan.