2 Best Sights in Big Island, Hawaii

For Native Hawaiians, Halemaumau Crater is the sacred home of Pele, the fire goddess; for scientists at the Hawaiian Volcano Observatory, this mighty pit crater within the massive Kilauea Caldera is an ever-changing force to be reckoned with. Prior to Kilauea's 2018 eruption, Halemaumau’s visible lava lake awed visitors for 10 consecutive years. Then Puu Oo Vent, which had been erupting farther away in the East Rift Zone for 35 years, collapsed in April 2018. As lava from the vent drained, so did the lava lake at Halemaumau Crater. A relentless series of seismic events at the summit followed, doubling the diameter of Halemaumau Crater and deepening it by 1,300 feet, after which a lake of water began forming, eventually growing to 160 feet deep. On December 20, 2020, an eruption within the crater instantly vaporized the water lake, sending molten lava cascading into the crater from vents within the walls and commencing the return of an active lava lake to Halemaumau, which has erupted intermittently in the years that followed through 2023 and likely beyond. There are many places in the park to view the magnificent crater, including at the Steaming Bluff Overlook and at Volcano House hotel. To get a glimpse of the lava lake during an eruption phase, there is a lookout area between the Steam Vents and the former Jaggar Museum area; another lookout point is on the crater's other side near the Devastation Trail parking lot. For the best lava-viewing experience of Halemaumau Crater during an eruption phase, visit the park after 10 pm when crowds are smaller.

A short walk from the Kilauea Visitor Center leads to the pungent yet fascinating Sulphur Banks, where gases composed of hydrogen sulfide produce a smell akin to rotten eggs. Most of the rocks surrounding the vents are chemically stained with a yellow hue due to constant gas exposure. Throughout the surrounding landscape, dozens of active steam vents emit white, billowing vapors that originate from groundwater heated by volcanic rocks. Located on the caldera's edge, Steaming Bluff is a short walk from a nearby parking area. The best steam vents are across the road from the main steam vent parking area; they vary in size and are scattered alongside the dirt trails.