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? Unfortunately not, as per our terms and conditions a guest aged 15 years or under must have an adult aged 18 years or over accompany them into the attraction. Buy Tickets Related articles How old must you be to enter the attraction unaccompanied? Do I have to pay for an under 3? Do you offer birthday party packages? How much are tickets to Madame Tussauds London? What are your opening and closing hours?