Ok, here's the deal. The beach at Gillson park is immaculate and very lovely. There is not a speck of trash anywhere. The insane property taxes in this extraordinarily wealthy town very clearly go somewhere. Still, paying $50 to go to a beach (3 adults, 2 kids) is, well, objectionable. If you object to this, and you want to swim, here is what you have to do: Go to the non-swimming side BEFORE 10am. You can then sneak onto the swimming side and have a dip. You can go back to the non-swimming side when you're done, but at that point it will be a one-way ticket, so don't leave anything behind.