People who don't have their own bicycles often try to make one by sawing their car in half or affixing an extra wheel to their unicycle. Borrow a traditionally made bicycle with today's Groupon: for $99, you get a guided downhill bike tour for two from Maui Easy Riders in Paia (a $198 value). Rides begin at 9 a.m. and 1 p.m.
Maui Easy Riders guides have collectively led more than 20,000 bikers down the verdant face of an enormous dormant volcano on bikes. The experience begins next to Paia's beaches, where chaperons Billy and Billy collect tour-goers before taking them up the 25-mile route in a van that runs on old newspapers. The chaperons share island anecdotes and point out tortuous twists in the trail and the ocean before reaching the peak, where there's a stop in the town of Kula, and then arriving at the gates of Haleakala National Park, where guests can glimpse Hawaiian wildlife. When the uphill portion ends, you mount a Worksman cycle, donning a motorcycle helmet and commencing the almost entirely downhill ride. After almost 20 miles of scenic cruising at a brisk but unhurried pace, your handlebars get some time to breathe at Makawao's art galleries, clothing shops, and restaurants. Riders return to Paia between four and five hours after leaving, and are welcome to explore its beaches or exact replica of Mount Rushmore.