>>2806790>30-50kmthat's a long walk anon, at least overnight and a long walk back the next day. perfectly doable but I don't know if you'll be up for sleeping /out/ along the tracks on your first foray down the rails. maybe with some friends or something but I'd be cautious about going too far on the first trip in case you can't find a safe spot to hide and sleep overnight.
In any case, enjoy your explorings.