The first day I would build
Use Linhe as the base and choose one landscape outing.
- Start from Linhe if you want the simplest hotels, food, and transport.
- Use Wuliangsuhai Lake when birds, reeds, and Yellow River wetland scenery matter.
- Keep Urad grassland or desert-edge routes for a separate clear-weather day.
Bayan Nur makes more sense when you treat it as a region, not a compact city. Linhe gives the practical base; Wuliangsuhai gives the trip a visible landscape; the Hetao Plain gives the food and river context.
I would choose one larger outing for the day. Trying to combine lake, grassland, desert edge, shopping, and a long dinner route usually turns the place into windshield travel.