Please remember that your site must be occupied overnight for the purpose of camping.

Parking a vehicle in one site and camping in another site does not comply with our policy. You must be camping in your site.

Holding a site for someone else or leaving a tent or trailer in a site unattended overnight is NOT permitted even if the site is paid for.

A person who camps at our campground or group site where a fee for camping is required, must:
(a) camp in a campsite;
(b) occupy only one campsite;
(c) not leave personal property on a campsite unless the person is camping, under the authority arising from payment of the camping fee, at that campsite, or has been authorized to leave the property on the campsite by a Site Host or Manager.

Any personal property or recreational vehicles that are left on site for the purpose of site-claiming may be removed or towed, at the owners expense.
Any camping fees paid, will be considered forfeit and no refund will be provided.

Also see:
Can I Hold a Campsite for a Friend
Can I Pay Now and Come Back Later to Camp?