No. The campground fees would be a personal expense that is not deductible.
Click this to learn more about deducting the mortgage interest expense on second homes.
Unfortunately, amounts paid to rent space for an RV are not deductible, even if you live there year-round.
The only deductions available for your home (or second home/RV) are mortgage interest and property taxes. Unless you own the space (the underlying real estate), you don't pay mortgage interest or property taxes.