...you have this situation:
At railroad park, in the bay from the boat ramp to the swim dock area and Alton Bay Community Center.
and at Jones Field in Alton:
I do not know how often it is enforced, but this has been enacted for at least one year, and I think actually more than two. As a non-smoker (now), it didn't have an effect on me, and most of our time at the bay is spent on our boat at the docks.