Parking is free for CT state residents. Out of state pays $22 per day on weekends and $15 during the week. Camping is $20 per night for state residents and $30 for out of state.
I don't know how much it costs but from what I've read it seems like a great deal
CT residents park free, other states vary day to day. Plan for around $25. It should be less than that if it's not a super busy day.
Amelia is correct. Local residents are either free or a reduced rate with a pass available. Out of state is still cheap though. Couldn't have been more than 5 to 10 bucks last time I went.
If you're a resident of Connecticut it should be free for the beach. We now have a feenon our registration for State Parks that allow us in for free now.
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