Hilo is a town on Hawaii, commonly called the Big Island, in the state of Hawaii. It’s known for Wailuku River State Park, featuring Waianuenue, or Rainbow Falls, with its colorful mist effects. The bubbling basalt-lava rock pools known as the Boiling Pots are nearby. To the south is Hawaii Volcanoes National Park, home to rainforests and the active Kilauea and Mauna Loa volcanoes.