Does anyone know how quick the RV Park fills up? I want to go somewhat spontaneously and especially not have to pay not refundable fees by booking online. Also, is the RV park INSIDE the park itself or out by the highway?

Weekends when it's nice I'm guessing are full quickly, it's a small park

Camping inside park. Lots of sites but if you want full hookups you may have a problem. This is several weeks ago and I was glad I made reservations. They were filled.

rv park is inside the park. we scheduled a couple months ahead of time in early spring... and when we got there, it was indeed mostly full or completely full. I would be nervous about going spontaneously. good luck.