You will be put on a curfew like a teenager. The first day we arrived, we ran into San Francisco to do a boat tour. When we left we hit traffic and got back at 10 to the gate closed and locked. We called and the lady chewed us out. We were not told during checkin and they have signs that are not in noticeable spots. They tried to tell us we had to come back the next day. We said to her on the phone "just so we are understanding you are saying that my kids have to sleep in our car and you are not allowing access to our camper." They came immediately. The river access is great if you have a boat but not great if you dont have a boat. We did not feel comfortable knowing that we were locked in at night in case of an emergency. We will not be back.