£3.50 per day, midnight to midnight, no entry after 20:30.
So an overnight stay will be £7. Still a bargain.
One word of advice, we have been there a few times and the last twice, the number recognition camera hasn’t got our reg number right when we approach the exit.
Make sure you keep your receipt when you pay, or pay at the exit barrier. ( we had to pay again as it said we hadn’t paid and we didn’t keep the receipt to prove it. We eventually got our £7 back after a few weeks though.)