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 accompanying them throughout the attraction. Buy Tickets Related articles Are there any restrictions for children at Madame Tussauds London? How can I contact you with a guest enquiry? How old must you be to enter the attraction unaccompanied? How do I book an Under Three child? What are your opening and closing hours?