This year Alton Towers are having 2 services days on 16th and 17th March.
The theme park will be closed to the main public and be only available to those with a Defence Discount Service and Blue Light card member with no opportunity to purchase tickets on the day.
Tickets are £18.50 for adults and £17.50 for children (3-11 years, under 3's get in free)
Members can also get free parking which is normally £6 per car.
The link does not take you to the discount page itself, Blue Light and Defence Privilege card holders will be able to access that page.