Hi,
Not much at Arunothai and now its closed to outsiders due to the virus. It will probably be opened in January but who knows ?
2 nice road loops :
- Arunothai , come back to military check point and take right just at the fork there (or go with google map and cut about 500m to 1k after the Arunothai gate), then there is Muang Na (not to mix with Muang Ngai like Flash Express keep doing for my deliveries) and you will reach Wiang Heng (Wieng Haen, Wang Haeng) and then you can come back to Muang Ngai. Very twisty and beautiful lanscape.
- Arunothai, in the center of the village (very small roundabout) turn right and follow the road to Doi Ang Khang. If you don't want to go to the park, you can turn right (going down) at the military check point and reach Fang (just a little before, between Chai Prakan and Fang to be precise). You can also turn right way before but then you miss quite a bit of the twisty roads and the visit of Doi Ang Khang that is worth it.
If you rent a sewing machine with dirt tires like a CRF250L, you can make a loop with Pai. Go to Wiang Heng and turn left (coming from Muang Ngai, not Arunothai, at the time it was near the end of the village, get some google map help). Very nice and long dirt road. Beware the hill tribe people that live there tend to drive like maniacs on those roads. If you want to come back from Pai to Chiang Dao, you can go through Huay Nam Dang national park and find some nice dirt roads.
Nice dirt roads around Chiang Dao but you need to either find them by your own or have a friend show you. Some nice day trips with mostly dirt roads are existing.
Places to hang out in Chiang Dao, the road past the cave that I call soi farang (Cave bar, and some more but its dead dead since the pandemic), in the center there was a night market every 2 weeks (also not anymore, don't know if it will ever start again), Cojon Bar, The One bar, Ding Ding Dong and some 100% thai places along the bypass.