Lee Valley Canal out from Limehouse all the way to Harlow is flippin excellent.
Don’t do it on a sunny Sunday, it’s a bit busy.
The only “dodgy” bit is coming past Hackney Wick where there are a lot of moored Canal boats and some occasional drunks snoozing across the path 😆
And just before it, there were some yoofs ganging up on cyclists to nick thier bikes.. they’d have a spotter who’d phone the group further along to notify em’ a nice bike was on its way.. huge crackdown by Plod happened and its quieter now just avoid dusk..
I used to ride it an awful lot a couple of years ago, me and mates used it as CXer routes out of town..
Lee Valley route and info