Wander through Jack Creek Preserve Outdoor Education Center and appreciate the work being put in to preserve the native animals and habitats.
You'll have no end of sightseeing choices in Ennis. Jack Creek Preserve Outdoor Education Center is a good place to start here, but there are loads of other worthwhile sights to experience. Lone Peak, The Bowl, and Beehive Basin are not far from the nature reserve and will round out your day nicely.