Take the Drives in both units. Stop at Wind Canyon Nature Trail in the South Unit and Riverbend Overlook in the North Unit. Both are short walks and offer beautiful views of the park.
Take a moment to explore the visitor centers at the north and south unit of the park. Each center offers a 13-mintue film showing seasonal scenes of the park, exhibits, and sales area. Also ask at the information desk about the schedule of ranger-led programs and special events.