There’s stuff about but 99% of the trails are not legit. Most official route maps will be bridleway and fireroad routes, and maybe taking in the only legit trails (BKB, Yog Pots & Summer Lightning).
I don’t have something to hand, but if you don’t mind a longer loop, going from Peaslake, up Holmbury, down to Holmbury St Mary via a fun trail (e.g. Crackpipe or via Telegraph and some random trail to the road), then up High Ashes climb and up to Leith tower. Snack. Then Summer Lightning all the way to Wolvens Lane and along the bank side of the lane, then down to Westcott. Loop back via Abinger Roughs, pop out at Abinger and wind your way back to Peaslake (various options).
Usual loop round Peaslake for me is up Pitch, play on various trails, across to Winterfold via Evian, to Northern Monkey, over to Charlie Bronson, and make my way back via whatever trails I fancy aiming for Supernova to Peaslake, or via Graveyard on Pitch. Optional add in loop up to Holmbury and back depending on time and botheredness.
Conditions – on Sunday, Pitch & Winterfold – *very* sloppy