Ziplines originally were invented for just two functions: sneaking hamburgers over the Berlin Wall and zazzing up presidential entrances to State of the Union addresses. Answer an airy call-to-arms with today's Groupon: for $79, you get a zipline tour for two at Vance Toe River Lodge in Plumtree (a $158 value).
The zipline at Vance Toe River Lodge zigzags through Plumtree's lush canopies, sending tour-goers on three-hour airborne adventures. After masking their appearance with helmets, harnesses, and gloves to ease ziplines' innate fear of humans, zippers travel across the 11 cables and four sky bridges that run through the forest's tallest topiaries. Along the way, guides enlighten patrons to the ecosystem that surrounds them, the underground mining system that sits beneath them, and the 5,500-foot height that separates danglers from the distant sea. Complimentary lunch at the Lodge Cafe after the trip awaits morning zip-liners unwilling to barter with squirrels for their acorn stockpiles and afternoon groups to fill up on food to give them energy prior to taking off.