Things to do nearMauna Loa

Mauna Loa is the largest volcano on Earth by volume and covers more than half of the Big Island of Hawaii. It has been erupting for hundreds of thousands of years, and its most recent significant eruption occurred in 2022, adding new layers of lava to a landscape already shaped by countless flows. The volcano sits within Hawaii Volcanoes National Park, a UNESCO World Heritage Site, and its geological story is inseparable from the formation of the Hawaiian Islands themselves.

Visitors exploring Mauna Loa encounter a terrain unlike almost anywhere else in the United States. The Mauna Loa Road leads through progressively older lava fields and native vegetation zones, offering a visible record of successive eruptions. At higher elevations, the landscape becomes spare and otherworldly, with ropy pahoehoe and jagged aa lava textures side by side. The summit caldera, Mokuaweoweo, is one of the largest in the world and rewards the multi-day hike required to reach it.

The trails on Mauna Loa are strenuous and high-altitude, making physical preparation important. The Observatory Trail and the summit route attract experienced hikers who come specifically for the challenge and the extraordinary views across the Pacific. Backcountry cabins along the summit trail are available by permit, allowing overnight stays in one of the most remote and elemental settings in Hawaii.

Mauna Loa represents a rare opportunity to stand on living geology and understand, in a direct and sensory way, how volcanic islands are born and grow. It is a place that rewards patience, preparation, and genuine curiosity about the natural world.