The premier drive in the park leads between towering cliffs of an incredible red-rock canyon and accesses all the major front-country trailheads. A shuttle bus ride is required April through October. If you've time for only one activity: this is it. Your first stop should be the Human History Museum ; the excellent exhibits and 22-minute film are a great introduction to the park. There are shuttle stops, and turn-outs, at viewpoints like the Court of the Patriarchs , at the Zion Lodge , and the end point, the Temple of Sinawava . Use the map you receive at the entrance to navigate. The shuttle takes 45 minutes round-trip; we'd suggest allowing at least two hours with stops.