Hawai'i Volcanoes National Park

Encompassing 520 square miles, this national park is one of the most photographed locales in the Hawaiian chain. For more than 70 million years, volcanic heat and pressure from inside the earth have molded the dramatic landscape, which includes Thurston Lava Tube, still-active Halemaumau Crater, and the highly active Pu'u O'o vent, which has been spewing lava since 1983. Visitors are able to drive the park's 66 miles of roadways, which wind in and out of dense tropical rain forest, but are encouraged to stay on guard since volcanic activity is commonplace and conditions change often. There is also the option to explore the more than 155 miles of marked trails on foot. The Kilauea Visitor Center sits just inside the park's main entrance. The park was designated a World Heritage site in 1987.