3 Day Get Away Beer and Walks

Been doing plenty of research and looking for a 3 day trip that won't completely bankrupt us - original plans were somewhere Austria way, but the flights are insane, so now we have landed on Berlin - great flight prices from Manchester September time.

We are looking for somewhere we can do some awesome walks with great views, but regularly stop off for that crazy good beer and food, mostly beer. Not going to be an obnoxious group of lads on stag do vibes or anything, it would just be 5 of us wanting a lot of beer and not the crazy busy loud city centre culture surrounding us. Somewhere ideally a train ride straight from Berlin to the outskirts.

I have searched through this threat, but the couple I have come across are motorbike riding and such.

Hopefully you guys can help!