I helped out at Dacres Road nature reserve with the Green Gym which is run by the BTCV. Join the local group and you'll get to have a look round. We were there because it gets repeatedly vandalised and we had to pull debris out of the pond. Pots of paint and building equipment had been slung in too. Industrial fly-tippers it seems.

I got to wear a pair of fetching fisherman's waders.