From April to November park rangers administer a series of walks, talks, and interpretive programs. These activities explore the lives of resident plants and animals or discuss the difficulty of life in the desert. Walks range from a leisurely ramble along Riverside Walk to a strenuous hike up the Narrows. Evening discussions are held regularly at Watchman Campground’s Amphitheater and Zion Lodge’s Auditorium. A list of discussion topics is usually displayed on bulletin boards at the visitor centers, museum, and campgrounds. Many tours accept reservations up to three days in advance. To make a reservation, stop in at Zion Canyon Visitor Center. If you have the time and the opportunity to join a ranger guided tour, don’t think twice, just go.