@ bucknell woods (forest) about a mile, max, from Silverstone. It was horrndous. I chose to go up the bridleway and it was like 6" deep thick brown porridge.
My crappy old retro tyres were having none of it at some points and I couldn't get my feet out the spd's in time, so just kept keeling over in slow motion, it was actually hilarious to watch.
The amount of effort involved in getting anywhere was just incredible!
Steve