Being suspended from a cable is an experience usually afforded only to window washers and to the custodians who have to repaint Mount Rushmore "rock color" every year. Dare to dangle with this Groupon
$69 for a Zipline Tour (a $101.89 Value)
On hikes through Texas Hill Country, professional guides take you to five ziplines ranging from 250 to more than 2,000 feet long. The tour ends with a ride on Texas's longest zipline, where you'll jump off a 20-story cliff and glide above Lake Travis. The entire experience lasts 2.5–3 hours.