If I am 16 years old but would like to bring my friends who are 15 years old, can we go into the attraction without an adult? Children 15 and under must be accompanied or supervised by an adult, prince or princess aged 18 years or over. Related articles Is there a maximum age restriction? How old can you be to enter the attraction unaccompanied? Are there any restrictions for children at Shrek's Adventure London? Under 2s go free – how to book Can I change my visit time or date after my original visit time or date via Booking Portal?