>>1533311South of Poland is the most interesting place for /out/.
At the SW, you have mountains like Karkonosze, which are at the border with Czechia.
At central south there are Tatry, only alpine type of mountains in Poland.
At the east of Tatry, you have nice places like Pieniny, or Bieszczady, at the border with Ukraine.
They are pretty wild, so look it up.
Also, from Karkonosze to Bieszczady, you have Beskidy, with longest trail in Poland, Główny Szlak Beskidzki (Main Beskid's Trail) 500 km.