Warwick Castle has launched a number of offers running until the end of the year for Merlin Annual Pass holders.
The 20% discount on food, drink and shopping has been increased to 30% until 31 December.
Pass holders can also bring along a guest for £2, as well as enter the secondary attraction Merlin: Dragon Tower free of charge until the end of 2011.
Standard Merlin Annual Pass holders are usually subject to an additional charge for admission to the Dragon Tower, as well as the Castle Dungeon.
Premium pass holders can access both attractions for free all year round.