What? : This is Probably the most popular scenic drive in the park, this 9 mile one-way drive on a paved road winds through multi-colored rock formations. The drive is very scenic, and you will want to stop often to enjoy the views and take photos of the colored rocks. The drive itself could be completed in 30 minutes or less but do plan for 40-60 minutes visit here, you want to stop, enjoy the view or even do a short hike.
Where? : The drive begins 8.5 miles south of the Hwy 190/Badwater Rd. junction and the entrance to this side paved road is clearly marked. When driving south you will pass the exit of this road, do not enter this one-way but keep driving to the south entrance.
When? : The recommended time to visit here is late fall, winter and early spring, summer is just too hot.
Few blogs links that provides additional information.