https://disneyworld.disney.go.com/resorts/campsites-at-fort-wilderness-resort/?CMP=OKC-wdw_lodging_gmap_14 Follow the link, click on availability. Select your reservation dates and select The Campsites at Disney's Fort Wilderness Resort.
Booking is the same if you were to book a hotel for Disney
Disneyworld owns it has to be booked through them . You can call or use the website
Thanks! Your answer is awaiting moderation.