Ski the fall line at Fichtelberg Ski Resort located 0.7 mi (1.1 km) from central Oberwiesenthal. If you master the slopes, Skigebiet Oberwiesenthal and Klinovec Ski Center are both nearby.
You can spend an afternoon studying the exhibits at Frohnauer Hammer Mill Museum during your travels in Frohnau. While you're in the area, wander around the forests.