Thanks for the input so far.
Our lake was originally built as the town's "swimming pool". It's in a small park on the edge of the town proper. When a proper indoor pool was built alongside the local secondary school, swimming stopped, and wildlife took over. Apparently it's now run by a Trust, the parish council having privatised it. Our club shed used to be the changing hut. Although the grass is cut and litter picked up, lake maintenance is zero. Nobody cleans up the bird mess. The pump that used to continually lift water from the adjacent stream to keep the lake water fresh has been switched off to save money.
It seems that priorities have changed, and money is being spent on on the kids areas of the park, while the lake and it's perimeter areas are slowly declining. The play equipment is well maintained, and a new skate park was built recently.
There are a couple of businesses that lease property in the park - a cafe, which seems to be doing well, and a cycle hire place that has shut up shop because the Trust increased the cost of the lease.
We pay absolutely nothing to use the lake or the shed, although we voluntarily maintain the shed. We have no contact or representation with the Trust. It was raised at the AGM that maybe we should seek a meeting with the Trust, and be prepared to either take on the maintenance ourselves, or pay a contribution towards upkeep. This is being looked into. Something needs to be done, as it's overgrown with weed during the summer months - no water circulation, and excessive feeding of the birds. For the last few weeks we've just gone along for a chat, very little actual boating can take place.
Because of the lack of contact, and never seeing any of the Trust's people onsite, it's down to us to keep things safe and create minimum disturbance to avoid members of the public making complaints to the Trust.