Easter weekend I passed many muddy 4x4's on the M180/M18 ... all seemed to have grinning maniacs at the wheel, so obviously a good site! (Was a 4x4 + camping event of some kind at korc).
Until then I'd assumed it was at Kirton on the A16, not Kirton Lindsey on the A15.
The CB shop, Knights, near there used to be the best in the country.