The Big Island's big show
Mauna Loa, a 13,678-foot active shield volcano, looms over Kilauea Iki, once a broiling lava lake that produced lava fountains as high as 1,900 feet during its 1959 eruption. Descending 400 feet through lush rainforest, the 4-mile Kilauea Iki trail offers hikers access to the crater, which is 1-mile long and 3,000 feet wide.