I have an adult & toddler annual pass. The Ts & Cs would seem to imply I can buy further tickets for a discounted price but I can't work out how and their help is closed for the day.
Perhaps it's only possible with the pricier passes? Or perhaps it's only discounted off of the day walk up prices and I'm better off buying the online advance price anyway?
If anyone has done this, I'd be grateful to know! Thank you.