How old must you be to purchase a ticket for entry? Anyone under the age of 15 would need to be accompanied by an Adult aged 18+. Guest's aged 15 and over can visit unattended. Related articles Is there any restrictions for children visiting The Backpool Tower Dungeon? Is The Blackpool Tower Dungeon scary? Do you offer a family rate for The Blackpool Tower Dungeon? What is the Online Saver Ticket?