In my opinion, it is possible but you should get your room before 17h00 otherwise it is kind of risky.
I've always made reservations. The later in the evening it is the more crowded the parking lot gets.
I had made reservations in advance. Saturday through monday night. The first night I stayed there were no vacancies. The other 2 they had rooms available. I think there was another hotel in walking distance
Yes, should be.
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