I run a 95 Fourtrak tdx, and have had countless off.roading trips in the old girl!take a look in the back pages of either 4x4 mart or 4x4 mag and you,ll see loads of sites advertised,a couple of which are in Yorkshire. A superb site, although a bit of a trek, is Langdale quest up near scarborough. ive not been for about 12 months,but feel the need to return !! If youve not tried it before, you,ll be hooked!
I,m trying the same this side of the pennines..in spring I reckon we organise a weekend somewhere, throw in the tents etc, a few crates of beer..and chill !! Good luck !