There is no set age a child requires a Merlin Annual Pass from. However we do provide the following advice:
If your child is 3 years or over at the time of purchasing your Passes OR will turn 3 during the life of your Passes we recommend you purchase a Pass for them, this is because children aged 3 or over are required to pay admissions when entering Chessington World of Adventures Resort Theme Park, THORPE PARK Resort Theme Park, Alton Towers Resort Theme Park, Warwick Castle, DreamWorks Tours Shrek’s Adventure! London, the London Dungeon, the Coca-Cola London Eye, LEGOLAND® Windsor Resort Theme Park, LEGOLAND® Discovery Centre (Manchester), the Blackpool Tower Eye, the Blackpool Tower Dungeon, SEA LIFE London Aquarium, Jurassic Skyline and SEA LIFE Centres and Sanctuaries. Children will require a ticket to Jungle Jims in Blackpool and toddler tickets from the age of 1 at The Blackpool Circus.