Located on the southern side of the Big Island of Hawaii, Hawaii Volcanoes National Park features two active volcanoes: Kilauea, one of the world's most active volcanoes, and Mauna Loa, the world's largest underwater volcano. This amusement park is a unique tourist destination for millions of tourists every year. You can see lava from the top or see thick smoke coming out of the crater. In addition, the park features diverse environments extending from sea level to the summit of the 4,169-meter Mauna Loa volcano.