While many incredible formations can be seen from the main roads, the best views can be had from the 17-mile loop road that runs through the valley. The road is open 6AM-8:30PM in the summer May - Sep and 8AM-4:30PM in the winter Oct - Apr.
The loop is not paved and can be quite rough and dusty, but most vehicles should be able to manage. You are not permitted to deviate from the loop drive without a native guide present. The loop drive can be done in as little as 30-40 minutes, but most visitors will take several hours to enjoy the scenery. There is no shortage of native guides eager to take you for a fee, of course! to the restricted areas.
