Instructions:Valid 24th of June to August 6th.
Follow the link and enter the code DX2FOR1JL17 for an emailed printable voucher.
Pay at the entrance for one full price ticket (£38) and hand over the voucher for a second free.
NOTE: You need one voucher for every free ticket.
For example, if there are 6 people going, you will need 3 printed vouchers for 3 free entries.
Terms and Conditions apply, as below.