Winter backcountry here is not about exciting downhills, but nice views. It's a tour.
Best for backcountry ski.
Cross-country ski is OK except for Martinovka – Labská where the track is not wide enough.
When there is no fresh snow and the snow base had time to strenghten, it's doable by hiking just on feet or snow shoes – but do not step into a ski track ☠️! Be prepared to turn back when the snow base is not strong enough!