Just a quick heads up. I was cycling along the cycle path that runs alongside the abandoned Heygate Estate (Old Kent Rd / Rodney Place) at about 7pm last night. I saw a group of youths appear on the overhead walkway and throw some objects at me. I was suddenly terrified as I thought they were rocks. They turned out to be eggs and one hit me on the head (luckily I was wearing a helmet). The whole Walworth area is a bit of a dodgy area for cyclists (some idiots tried to push me off my bike last year). I think it's best to stick to the main roads after dark. I'm probably going to stop using the Surrey Canal path after dark too.