The Kilauea caldera is the first site to see as you enter the park. The giant crater sits at an elevation of 4,000 feet and excellent views are plentiful from all sides. While Kilauea is always churning below the surface, it's not uncommon for lava flows to break through to the surface where they can often be safely viewed by visitors willing to hike to the surface flow area. The rangers at Hawaii Volcanoes National Park do an outstanding job of helping visitors access lava flow areas safely.