There is a 2 for 1 voucher on select Yazoo Milkshake bottles which can be exchanged to get one free adult ticket with a full paying adult at either Alton Towers or Thorpe Park.
Use the unique voucher code on the inside of the sleeve and visit www.yazoo.co.uk/altontowers to redeem the voucher. This voucher can be used at either Alton Towers or Thorpe Park until December 31, 2022.