Mastercard are offering a 2-for-1 printable voucher, giving entry to a range of Uk theme parks and attractions when entering their online competition by May 31, 2011. The voucher can only be used when purchasing a full priced adult ticket using Mastercard.

The 2-for-1 vouchers can be used at the following theme parks and attractions until July 31, 2011:

• Alton Towers - excludes June 12, 2011
• Thorpe Park
• Chessington World of Adventures - excludes all Zoo days.
• Warwick Castle
• Madame Tussauds
• Legoland Windsor
• The Dungeons (excl Blackpool)
• Sea Life Centres/Sanctuaries

Each entrant to the competition should also receive the following discounts:

• 50% off Hotel rooms at the Alton Towers Resort
• 50% off Hotel rooms at the Chessington Resort Hotel
• Up to £55pp off a Merlin Annual Pass

Please note: further block-out dates may apply. For full details and to enter the mastercard competition visit the Priceless days out website.