My high school son and I went on the Volcano Twilight Tour. Justin was our guide. It is a long tour, over 300 miles of driving, and you spend 11 hours with a bus full of folk, but it was actually a great experience. Justin was very well spoken, personable, and enthusiastic about what he does, and he is very knowledgeable about the island. The National Park is fascinating - developed a whole new appreciation for what a volcano actually is, and leaned how over the course of the last 85 million years, a 'hot-spot' in the earth's crust in the middle of the ocean has created dozens of Hawaiian Islands which now extend all the way to the Aleutian Islands (only 6 of which are above water....). I was never bored on this tour - there was always something interesting happening. Their vehicle (a Mercedes Sprinter) is very comfortable and drives safely and smooth. My hats off to Justin for a great day, and his wonderful enthusiasm. Definitely a worthwhile use of time and money!