I had commented that she rejects the notion of traveling on while there was daylight.
But inns really would be situated a day's journey apart. That was how you got the custom to fill them up.
Unless I had put something unpleasant the next day so that they didn't want the inn in it -- I forget what the next scenes have. (The wonders of revision.)
Or I could have Ginny tell her that the spell went wrong there. Since she's already stayed at the inn two times this trip, while trudging along on the road.