Is there any public transport from Baoding to Yesanpo Scenic Area?

Yes, one direct tourist bus is set for the scenic area. It leaves from the Passenger Transport Center at 06:00 and has other two stops in downtown: Junxiao Square, 06:20 and People's Square, 06:40. It is round trip bus and I remember the bus fare is CNY40 per person. Or you can go to the same Coach Station to take a bus to Laishui Town and transfer to another bus to Yesanpo.

Accommodation is quite convenient there. You can easily find hostels and Happy Farmhouses (Nong Jia Le). The charge is very reasonable.