From Keuka Villa drive to Branchport. This is easy. Drive North until you get to the first stop sign (about 7 miles from Keuka Villa) Turn Right. The playground is about 0.1 miles next to the library on the Right
Not a playground but Kids like to run around in the park on the water or in the square in the middle of town.
This one is a little more tricky to get to but it's fun. Type into google "Penn Yan playground" The top 3 results are it!