Alton Towers is offering a 2-day ticket for £9 extra than a 1-day ticket when booking online.
This offer applies to individual and group tickets when booked at least 7 days in advance.
For full details and to book visit the Alton Towers website.
Please note: a £1.50-£2.50 booking charge is added to each transaction when booking by debit/credit card to cover the administration costs of processing the card.