Curry Hammock SP just east of Marathon this past weekend. Friday was a rainout, but that's ok because we just relaxed. Saturday was perfect.
None of the sites are directly ON the beach. Sites along the waterfront are buffered by the dunes. But seeing as there are only 28 sites in the whole campground, you are only steps from the beach no matter where you are.
The whole campground is new, because the park itself is relatively new. Bathhouse is nice, although the toilets were the stuff of nightmares since all the waste just falls to the lower level to be composted. Unnerving to open the lid and just see a hole to nothingness!
There is a "day use" area as part of the park, but of course your camp rate includes that fee. Playground, shelters with picnic tables, and more beach. We discovered it's a VERY popular spot for kite boarders. Probably due to the constant breeze, shallow water (barely waist deep probably a mile out or more from the coast), and low boat activity.
Campground beach (dogs are not allowed on the beach)
Hiking in the hammock