Along the road from Doi InSee I found another Wat which was on my list of things to do/see - Wat Phrathat Tham Doi Kong Khao (N19.91242 E99.77693). I had hope that I could drive up to the top of the mountain but no luck this time and a description I found on another forum described the ,climb as being very difficult so I did not even try it with my wonky lungs. As I was looking for a more easy way to get to the stupa on the top, I forgot to visit the cave on the same grounds so that is something I will have to do the next time I am in the neighborhood.