Local Yr 2 Environment Competition?

My daughter is in Y2 in S Harringay. Her class teacher just approached a few of us to see if there is a local competion that might be running at the moment that the kids could tap into as part of a theme they are doing on environment at the moment.

I think she is looking to tie in the work to getting the kids engaged in something local, and midly competetive to get them intersted.

Anyone know of anything that I might pass on?