This natural formation is so amazing that I can't even accurately describe it. I have been to the Grand Canyon many times and loved it, but this is so much more amazing. The rock formations and colors are fabulous, and the lushness of the surrounding areas make it that much more amazing. The canyon seems to go deeper into the earth than you can imagine -- it is actually 10 miles long, one mile wide, and 3,500 feet deep. To think it is on islands that were formed by volcanoes makes it truly a wonder. There are sulfur springs all around, which smell awful, but are beautiful to see; the surrounding forest area and drive are sights to see as well.
The canyon is part of a state park and maps can be found at the ranger station for both driving and hiking. There is camping available at Koke'e Campground as well as cabins.
Allow a day to drive, hike, and see the many angles, but take snacks and lunch because there are great picnic places, but not many restaurants or watering places around. There is no gas station either, so be sure to get gas when you leave your resort. There aren't lots of stations around the island once you get away from the main areas. A Jeep is a definite plus for this trip -- the wind in your hair makes for a great trip!