If you are or plan on being a regular visitor to High Trek Adventures, a punch card is a great way to go. Why buy a Punch Card?
1.   You will get a savings off of the regular price of admission.
2.  Punch card punches can be redeemed 1 at a time over the course of several visits to the venue, whereas a Voucher is a one use paid admission for the number of participants in the pack.
3.  Use "punches" for yourself or your guest(s).
4. A Punch Card never expires so you can redeem them over the course of multiple years whereas a Voucher is only good for the calendar year specified at the time of purchase.