Hawaii Volcanoes National Park
Two of the world’s most active volcanoes sit on the Big Island: Kīlauea and Mauna Loa. And they are both encompassed in the national park in the southern half of the island, which you can visit by car. Check before you go to see what the latest is, but recently, Kīlauea has been erupting in two places. One of the vents (within Halema’uma’u Crater) can be seen from an overlook at Jaggar Museum—best view is in the evening, on a clear night, when the fire from the crater lights up the sky. If you want to spend more time in the park, there are a number of trails that you can explore on foot; the park has a pretty cool landscape in part because it spans from the summit of Mauna Loa at 13,677 feet down to sea level, and therefore a diverse range of ecosystems.