I love groupon and by lot of them. This review is for Adventure Hummer Tours only.
Booked a room at our time share drove 90 miles to go on the 4:00 pm tour. They called at 2:30 and cancelled. They did not have 4 people for the tour and I guess they just discovered this that day! No remorse, no apology, the guy even hung up on me. We had purchased a groupon which they redeemed prior to cancelling the tour.
Don't trust them with your time or cash!