The cool, clear air gives you wide views of the Elbe Sandstone Mountains and the Lusatian Mountains, which are not available in summer. With good visibility, you can also see the Ore Mountains and the Giant Mountains, which, with a bit of luck, are covered by a thin layer of snow.
Caution, the cool air usually also brings snow and icy conditions, in these weather conditions it is advisable to rent ice dodgers - for example at the Bad Schandau Tourist Service.