The website says, "For Reservations Dotsi Graves at Pacific County Department of Public Works, Phone No.: (360) 875-9300 Ext 2279." So I would assume that reservations can be made. When I was there in August 2021, there were a few available spaces without hookups. The spaces with hookups were all occupied.

We have stayed here twice. I would certainly recommend reservations bcuz there are not a lot of alternatives in the area and this park can go full tilt on the weekends.

Yes, you can make a reservation and pay in advance. call the park host.

Yes, you can. Follow the link and you will see info for making a reservation. I believe you have to call the park directly.