The Goliath at Foxfire Mountain is the highest in the Great Smoky Mountains at 275 feet. It is a two-hour course with five extreme zip liens, making it better for the more experienced zip liners. Travel over 55 miles per hour over the Little Pigeon River after starting with training in the barn with a 600-foot practice zipline. A tractor-pulled wagon takes you to ghe mountain and there are guides with you at all times. The zipline also features braking technology so you don’t have to use your hand to stop. All riders must be at least 10 years old and weigh between 100 and 250 pounds.