In recent years, the St. Louis region has built an extensive network of biking/hiking trails that run through some of the region's most glorious scenery. But plenty of other outdoor adventures await the intrepid traveler, including ziplines, canoing, horseback riding, paddleboating and parasailing, all designed to quicken your heartbeat and raise those adrenalin levels.
Things to Do in St. Louis: Outdoor Adventures
On the bluffs above the Mississippi River west of Alton, Illinois
(courtesy Alton CVB)