Wailuku River State Park is located off Waianuenue Avenue in Hilo on the Island of Hawaii. It is close to the Boiling Pots area and at the end of Pe'epe'e Falls Drive. It is also close to Rainbow Falls Area which is on Rainbow Drive. The state park is open during daylight hours and there is no entrance fee.
The state park is comprised of 16.3 acres. From the park one can see geologic sites and scenic interests such as waterfalls that run along Wailuku River. The Boiling Pots are a succession of large pools that are connected by underground rivers or waterfalls. The water rolls like it is bubbling hence the Boiling Pots name.
In some of the pools there are exposed hexagonal columns which help form the basalt lava. Rainbow Falls is 80 feet high and the most renowned falls in the area. It is named for the rainbows which form during the early morning due to mist.
There is a legend that says a cave beneath the water falls was the home to Hina, which is the mother of demigod Maui. Facilities onsite include drinking water, trash cans, and restrooms.