The Sainsbury's Great Days Out Vouchers campaign runs from 16th July to 12th August 2008.
If you spend £40 or more in one transaction at Sainsburys (and that includes at their fuel pumps so it's pretty easy to do nowadays!), you'll get three vouchers for free entry to top UK attractions, including Alton Towers, Thorpe Park, Legoland, Chessington, Madam Tussauds, Warwick Castle, London Aquarium, the London Dungeons, the Sealife Centres and Seal Sanctuaries. The vouchers allow an adult or child free entry when accompanied by a full paying adult and are valid 'till Nov 08 for some places and upto Feb 09 for others.
You will also get a ticket to download a voucher for offers on a very wide range of local attractions and activities of your choice. Many of these are two for one offers and are open from now 'till July 2009, but do check the Sainsburys website for full terms and conditions.
Check out you local Sainsburys store or the Sainsburys Great Days Out website for more info and full terms and conditions.
For more offers, discounts and where to find free tickets to attractions and venues, check the IdeasForTheKids Discounts to attractions forum