For Native Hawaiians, Kilauea's Halema'uma'u caldera is the sacred home of Pele, goddess of fire, lightning, wind, and volcanoes. Hawaiians have visited the crater for centuries to offer gifts and pay respect. The volcano's spiritual significance runs deep through the landscape. In 1790, a group of warriors along with women and children were caught in a violent eruption near the caldera. Many perished, and their footprints were preserved in hardened ash, still visible today along the Ka'u Desert Trail. These impressions remain one of the park's most haunting features, a reminder that this is a landscape of both creation and destruction. The park recognized this cultural weight when it replaced a 1929 painting of Pele that had depicted the Hawaiian goddess with Caucasian features. In 2003, Native Hawaiian elders selected a new painting by Arthur Johnsen that gave the goddess distinctly Polynesian features, holding a digging stick in one hand and the egg that birthed her sister Hi'iaka in the other.

The park owes its existence to Lorrin A. Thurston, grandson of the missionary Asa Thurston, who had helped introduce the Western world to Kilauea. The younger Thurston invested in the Volcano House hotel at the crater rim from 1891 to 1904, then used his newspaper, The Honolulu Advertiser, to campaign relentlessly for national park status. His lobbying was nothing if not creative. In 1907, the territory of Hawaii paid for fifty members of Congress and their wives to visit Kilauea and Haleakala, where they were served dinner cooked over lava steam vents. Thurston enlisted endorsements from John Muir, Henry Cabot Lodge, and Theodore Roosevelt. After years of opposition from local ranchers and multiple failed bills, delegate Jonah Kuhio Kalanianaole finally guided the legislation through Congress. President Woodrow Wilson signed it on August 1, 1916, making Hawaii National Park the eleventh in the system and the first established in a U.S. territory.

Kilauea is one of the most active volcanoes on Earth, and the park functions as much as a scientific observatory as a recreational destination. The Hawaiian Volcano Observatory, operated by the U.S. Geological Survey, has monitored eruptions from the crater rim since 1912. The Chain of Craters Road descends from the summit caldera to the coast, passing craters from eruptions spanning centuries. Once this road continued to the town of Kalapana, but lava has buried that section entirely, leaving it accessible only as an emergency route. In May 2018, explosive eruptions at Halema'uma'u forced the park to close its entire Kilauea district. Earthquakes cracked roads, toxic ash clouds billowed from the crater, and the Jaggar Museum sustained damage so severe it was eventually demolished in 2024. The park reopened in September 2018, and since December 2020, Kilauea has resumed intermittent eruptions with lava fountains and flows, though nothing on the scale of that dramatic year.

The park's range is staggering. At the summit of Mauna Loa, which last erupted in 2022, the Mokuaweoweo caldera sits in a wilderness so remote that most visitors never see it. Half the park, roughly 130,790 acres, is designated wilderness. Below the volcanic highlands, tropical rainforests give way to coastal lowlands where endangered Hawaiian hawksbill turtles nest and Hawaiian monk seals haul out on black sand beaches. In 2022, the park expanded by 16,451 acres when The Trust for Public Land transferred Pohue Bay, a stretch of coastline rich with Hawaiian cultural sites including the largest recorded abrader quarry in the islands, ancient lava tube shelters, petroglyphs, fishing shrines, and remnants of coastal villages. The Thurston Lava Tube, named for the park's champion, offers visitors a walk through a hollow conduit carved by flowing lava, its walls still textured with the ripples of molten rock long cooled.

What makes Hawai'i Volcanoes National Park unlike any other protected landscape is its impermanence. Trails are rerouted when lava crosses them. Roads vanish under fresh flows. The coastline itself grows and retreats as new rock meets the ocean in explosions of steam. The park's designation as both a UNESCO World Heritage Site, granted in 1987, and an International Biosphere Reserve, designated in 1980, recognizes its extraordinary geological and biological value. Rare endemic species including the opae'ula, a tiny red shrimp found in anchialine ponds, and native birds like the 'iwa, koa'e kea, and 'auku'u depend on habitats that exist nowhere else. Standing at the Halema'uma'u overlook at night, watching the glow of molten lava reflecting off volcanic gas clouds, the scene looks less like a national park and more like the beginning of time.