If you want to sail yachts there is no local 'shop' to go to as it is a niche interest and you have to do some things for yourself. The rest follows A committee in a club you belong to works on trust and doing what you want it to, they are elected or should be. Sometimes requests for an action need a reference to the 'real world' and are not persued.
I joined a Bridge club 30 years ago which had been in operation for less than a year. It had the usual 'committee' all self appointed not the best but they set it up. Gradually losses due to age etc brought in elected new blood and we then got to be a good and well run club.
I still know people who say we should be doing this or that but do not offer themselves for the job. If you contribute you will get a good return.
Looking at your last paragraph ponds here get users straight away. In my area we have gravel extraction and lots of holes with water in them. Most are owned by fishing clubs or controlled by sailing clubs. You would not be made welcome to bring a boat along and sail it.
We have lots of water locally but not much to suit our hobby, I am afraid money talks and excludes!
regards
Roy