How can you use Groupon to buy tickets. if you are unable to schedule a tour with a Groupon voucher. Groupon says to show up and you will be scheduled for the next available tour. All the tours are sold out before the next business day!

They always have tickets to accommodate large parties just call or show up

We got there around 915ish and barely made it on the tour, they may have more later, but you just never know. I would get there as early as possible and be prepared to wait for a while.

Tours book out pretty quick, especially if you have more than 2 people. A single person can usually just show up and get in. Call ahead of time with your groupon.

What Andy Moreno said...but seriously, call first

Tours are every 5 to 10 minutes, I would just show up.