How is the condition of the road. We will be travelling from Fang tomorrow

I want to travel from Chang Mai, next Monday (3/8) to Doi Ang Khang. How can I travel by public transport, I will be travelling by myself, and I don't want to hire a car. Also, I would like to stay at Doi Ang Khang for 3 days, so I can have a really good look. I am from Australia,

A great initiative from the King, It is a wonderful way to spend the afternoon , high in the mountains , clean air, wandering through the secret pathways that weave the way around the gardens. Nothing is marked but it is obvious which way to go , eventually after roaming through a variety of landscapes, past the propagation area , herbs and tea there is a beautiful spot for a good coffee or other refreshments from there it is about 1500 meters easy walk back to the exit and car park. This road take you past the research and development of many fruit trees not typical for Thailand eg peaches. Opposite the car park there is a beautiful flow garden and another refreshment house. The only thing lacking was the lack of English descriptions of the plants , whist some were marked many were not. If you love plant life and want to support this great initiative for the cost of 50B per person and 50 B for the car and the beautiful drive up the mountainous road , then take the time.!