More from the mis-labelled site - and note it's a different school which I think is marginally further out - I'll check that in a moment.

"ONLY SEASON TICKET HOLDERS ARE PERMITTED TO CAMP. This is not limited to week long tickets. As long as you have a season ticket for the day/night you camp, you can camp on the site for upwards of 1 night.
• THERE ARE NO ANIMALS ALLOWED ON SITE.
• All under 18 year olds must be accompanied by adult Season Ticket holders on the same booking form. Unaccompanied under 18 year olds will not be admitted.
• All cooking appliances brought on site must comply with all relevant safety regulations.
• No fireworks, smoke canisters or other dangerous items.
• The campsite is a no smoking zone."

I have wondered before what smokers are supposed to do.