If you're adding tents to an RV site, three should fit, no problem, and way cheaper than adding a tent site.
This is a fantastic park and well worth it.
The $10 is only the parking. The tent sites are $32 per night and a $7 registration fee. About two tents fit on a site.
I have seen multiple tents on a single site. Should be no problem. Plenty of space and very nice folks who run the place.
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