McDonalds are giving away a 2 for 1 voucher on selected Happy Meal boxes for entry to Alton Towers, Thorpe Park, LEGOLAND Windsor and Chessington World of Adventures as well as a selection of other Merlin attractions including Warwick Castle, Blackpool Tower Dungeon and Sea Life Centres for visits throughout 2019 and up until 30th June 2020.
The voucher is located on the side of the promotional boxes and must be cut out and given over at the ticket booth when visiting the attraction.
McDonalds has not given an exact date as to when the promotional boxes will stop being available.