When are you coming? Might be a football match on if that's your thing.
There's all the usual stuff:
Cineworld
Bowling
Rileys (pool and snooker)
Clubs (liquid, mojo, groove),
Bars (edwards, yates, whetherspoons errrm...
There's the waterfront with a couple of restuarants and bars
There's alton water if you like walking next to a lake
Several different golf courses
There's a dry ski slope
Indoor kark racing
Fishing
Crown pools swimming pool
If you want to visit local places there's Felixstowe (seaside town)
Errrrrrrm...