Word of caution.... DON'T visit here on a holiday weekend if you really want to do some hiking. You won't be able to find a place to park, unless you get in as soon as it opens.
So bummed I ended up driving the loop and there were cars parked along the street about a quarter mile-half mile from the trail heads at some locations. The views are gorgeous though just driving through the loop. I'll have to revisit at a time where it is less congested. Wish they could do what ZNP in Utah does with the busses!