Hello all, hope i've chosen the correct place to post this. I'm currently training to join the Ta and need to do a bit of hill walking with bergen. I've been going up to the Brecon Beacons which is great but I can't really afford the diesel so wondered if anyone could recommend something challenging in the London area. Up and down routes and so on. Failing that I suppose i could ask the shard but not sure it will bring on the running too much. Thanks in advance.