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 $45, 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-foot-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 30–40 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 requirements, and call to book your tour in advance.