Cracking cycling country (ignoring Lynn itself, which is a hole - except maybe the waterfront) over the whole of NW Norfolk.
If you like getting up close and personal with trees, there's a well known Trials course in Shouldham Warren. My #1 Son used to go there every week - you can "catch some good air" there apparently, whatever that means.
You can head South from Shouldham and play "Hunt the Contour" in the Fens. Head North, and it's slightly lumpier towards Hunstanton. If you like plane spotting, Shouldham is next to RAF Marham; it's been pretty quiet there for a few months as the lads have been away bombing the Taliban, but I think they came home last week.
I'll check my Calendar - I may be around for a cheeky beer or few one evening/lunchtime if you like.