Fodor's Expert Review Standley Chasm

At midday, when the sun is directly overhead, the 10-yard-wide canyon glows red from the reflected light, a phenomenon that lasts for just 15 minutes. The walk from the parking lot takes about 20 minutes and is rocky toward the end. For a greater challenge, climb to the top via the steep trail that branches off to the left at the end of the gorge; the views are spectacular. There's also a kiosk selling snacks and drinks at the park entrance.