My [17/f] boyfriend [17/m] has been having a rough time lately. Do you guys have any suggestions of fun activities that would cheer him up?

My boyfriend of over a year and I have been going through a rough patch the past few weeks. He's been in a bad mood, not particularly because of me, but he has been getting pissed off quite easily lately. This week he told me he wanted a bit of space just to think things over by himself, and I've been doing my best to stay out of his way. There is a chance this may break us up, but I'm really hoping we'll be able to work through this. I was hoping to maybe take him to do something fun to cheer him up and take his mind off things. Somewhere where he'd be able to let off a little steam might be good. Do you have any ideas of a fun activity for him?

TL; DR: My boyfriend and I have been going through a rough patch, as he's been in a bad mood lately. I want to take him somewhere to cheer him up and let off a some steam.