Moaning Cavern Zip Line

California's newest zip line is in the Northern California town of Vallecito. Twin 1,500 feet long lines take riders for a thrilling trip down the mountain side. The zip line at Moaning Cavern lasts 35 seconds and reaches a top speed of 40 miles per hour. At $39 for the first ride, that's about $1.10 per second. A second zip line is in the works which will be a mile and a half long, surpassing