There are three spots off the top of my head that are easy enough to wheel your cat on to the beach here in my town, but the issue is there is no place to park your trailer once you get the boat off.

I bought a beach parking sticker for both my car and trailer, but the cops said "no-go" to using up two spaces. I'm not sure there is parking available for trailers within 3 miles of the walk-over spot for the boats...