I do think that once more signs have been put up you’ll find a bunch of nice stuff to submit 
If there is any signage by that pond, or any other community structures like picnic benches, view points etc that would work too! I’m not too familiar with how things work over there but surely infrastructure like playgrounds, sports fields etc will be added at some point? Could you petition to get some?
This guide might be useful (even if your area isn’t rural)