Badaling Chadaocun / Chadao gu cheng / Chadao village / Chadao ancient town
This is the area to stay if you want to spend several days exploring the Great Wall in the Badaling area.
Guest house (40°21'50.20"N 115°59'10.92"E) had heated floors, excellent food, and very friendly owners
If you go up behind this village and head northeast you can reach Xiaozhangjiakou in a few hours.