We stopped at each opportunity and hiked. The changing topography, views and experience is incredible Each one more beautiful than the last. Take some time at the top and ask the helpful staff questions. On the way down, make sure to hike at least 1.1 miles on the Halemau'u Trailhead to the valley rim - great view on a trail that is not very challenging to that point. The restrooms were impeccable - best I have seen at any national park.