The Colombian city of Medellín is a feast for the senses, an urban adventure. But it’s easy to get out of town, too. Travel to Arvi Nature Reserve, about 45 minutes outside the city, for a guided ziplining tour that zooms through the jungle and over rivers. Glide on several sections that are 656 to 984 feet (200 to 300 meters) in length and about 65 feet (20 meters) above the ground. Includes hotel pickup and drop-off.