You've seen this arch before: it's the unofficial state symbol, stamping nearly every Utah tourist brochure. The best way to experience it is from beneath. Park near Wolfe Ranch, a well-preserved 1908 pioneer cabin. From there a footbridge crosses Salt Wash (near Native American rock art) and marks the beginning of the moderate-to-strenuous, 3-mile round-trip trail to the arch itself.
The trail ascends slickrock, culminating in a wall-hugging ledge before reaching the arch.
Tip: ditch the crowds by passing beneath the arch and continuing down the rock by several yards to where there's a great view, but fewer folks (bring a picnic). If instead you drive past the ranch to the end of the spur road, there's a 50yd paved path (wheelchair accessible) to the Lower Delicate Arch Viewpoint.