Make sure your brakes and engine braking are working before tackling this one. There's lots of climbing and downhills as you cross watersheds. Not many viewpoints, but the ones that exist are good. Be sure to get gas on your way up to the parks--there is none in the parks and the mountains eat gas! We did not drive the southern half of Sequoia, but we understand that is a very challenging road they are trying to modernize, so be prepared for construction when the weather permits.