Sandy Point, and yes, I’d recommend. I think it’s $7/car for out-of-state vehicles. This was the last weekend you could take your dog. Lots and lots of swimming beaches and parking and picnic tables and bathrooms and a snack shack. You can do fishing and crabbing there, too, if that’s your thing. Not much in the way of trails, although there is a short trail, and it’s also next door to another nature preserve.
Can’t remember if you have a dog (I think you do?), but there’s also Terrapin and Matapeake, and if my info is correct, you can bring your dog in year-round.