When you arrive and pay your camping fees, you must be prepared to start camping immediately.
You are not allowed to arrive, pay for a site and then leave to get your camping unit (tent/RV). This is considered to be Site Claiming, and is not permitted by RST BC.
You are not allowed to leave personal property on a campsite unless the person is camping. Placing personal property in a campsite to claim it is not considered to be occupying the site for the purpose of camping. Anyone found doing this, your property will be removed (at the owners expense), your camping permit will be voided and no refund will be provided.
Also see:
Can I Hold a Campsite for a Friend
Site Availability
Campsite Must be Occupied Overnight