We have two unusual policies at the water parks concerning ticketing. Both involve use of a one day water park ticket.
One is we will allow full value of the used WP ticket to upgrade to a WP AP as long as it is within 14 days of use.
The other, which is the only time combining tickets is allowed, is we will merge a used WP one day ticket with a MYW ticket to add the WPF&M option and only charge the difference in price.