I hadn't looked at this thread for three years(!) when I came to look for a loop, and that WNKR ride was on the first page I came to. It looks like a good one and I may end up doing that.
I just found a route on RWGPS and have modified it slightly which I think is entirely on roads I've not ridden on before:
The road back from Otford to Dartford is pretty busy, you can make it more interesting, and quieter, by heading up Rowdow Hill just before Otford and head down Knatts Valley to Farningham.
You'll curse the hell out of me as you head up Rowdow though.
I hadn't looked at this thread for three years(!) when I came to look for a loop, and that WNKR ride was on the first page I came to. It looks like a good one and I may end up doing that.
I just found a route on RWGPS and have modified it slightly which I think is entirely on roads I've not ridden on before:
https://ridewithgps.com/routes/33545586
Does anyone have any input on this and whether it looks good/misses out good bits or key flytipping spots nearby?