Zip lines are formed of equal parts steel cable, pure adrenaline, and high-flying fun, unlike intersecting parallel lines, which are made of geometry and the letter "F." Succeed at being entertained with today's Groupon: for $47, you get an all-inclusive zip-line tour at Action Zipline Tours in Big Bear Lake (up to a $95 value).

Action Zipline Tours thrills seekers and adventurists with aerial expeditions, Pinzgauer adventure rides, and scenic views featuring a troll-free suspension bridge. The aerial portion of the exploration features nine 120–820-feet-long zip-line rides that glide above majestic landscapes and towering trees. Riders take in breathtaking views as they glide over the ground approaching speeds of 35–45 mph. Restless ground-pounding excursionists amp up excitement with a 20-minute 4x4 Pinzgauer adventure ride through the woods as adventurists take in panoramic views of Johnson Valley, as well as a bird's eye view of the local yeti commune.

All equipment and safety information is provided with the tours—see the FAQ section and requirements page for all necessities, and call to book a tour in advance.