Under one of the arches just by Peckham Rye station is this bar that brews its own beer on the premises. All of the beers I tried were great, prices are not horrendous and the staff are really friendly and know what they are doing. Inside they have all of the brewing equipment that you can gaze in awe at and not much else but a bar with nice beer and people behind. There is a double decker bus out the front that sells pizza and lots of room outside to chill out in the fresh air. It was cold when I was there but add some sun and it would have been pretty perfect.