There is TONS of beach to explore at this little State Park in New York. I used to visit here as a kid years ago because my grandparents owned a cottage on the lake. Since they sold it, visiting Southwick is the next best thing. Lake Ontario is an amazing lake to be on and the water is pretty warm in the summer time. the waves don't get too big, so it is very safe for kids. Southwick itself has great camping spots right next to the beach. It is a little pricey if you only want to visit for the day, $8, but you can get a tent spot for $18 which is comparable to other state parks. Showers are available, and there are some short trails that are good for running or probably cross country skiing in the winter. There is also a sizable playground near the beach that is great for the kids.