Walworth Rd can certainly look a bit dodgy but thankfully I've not had (nor seen) any incidents on my travels along there. Though I'd mainly use Thurlow St/Rodney Rd but that'd put you around Peckham which is probably a bit far East for a trip to Herne Hill.
But yeah, E&C > Oval > Brixton is probably a better suggestion if you're not really familiar with the area.
Walworth Rd can certainly look a bit dodgy but thankfully I've not had (nor seen) any incidents on my travels along there. Though I'd mainly use Thurlow St/Rodney Rd but that'd put you around Peckham which is probably a bit far East for a trip to Herne Hill.
But yeah, E&C > Oval > Brixton is probably a better suggestion if you're not really familiar with the area.