One of the deadliest places on the island of Hawaii is also a state park. The Wailuku River State Park in Hilo includes the state’s second longest river, where visitors and locals take in the natural beauty at two lookouts: the 80-foot-tall Rainbow Falls and an area about 1.5 miles farther upstream known as “Boiling Pots,” where there are more waterfalls and pools.

Hundreds of thousands of visitors per year frequent the picturesque area to see the different falls, while locals will sometimes spend afternoons there picnicking. But Wailuku, which translates to “waters of destruction,” refers to how dangerous this river can be. Warning signs discourage locals and visitors from stepping beyond the trail and railings; however, some people choose to ignore them.

Over the past 29 years, 27 people have died in these waters. In November 2017, a San Diego couple died after being swept away by a current above Rainbow Falls. In March 2022, the body of a Hilo man was found floating at the bottom of the falls.

The last fatality occurred at Boiling Pots in September when witnesses saw a Florida man “enter the water and immediately be pulled under the rapids,” according to a Hawaii News Now report. The Hawaii Fire Department recovered his body about 30 feet underwater.

Despite its name, Boiling Pots is not hot. It’s in reference to its large terraced pools created by the erosion of old lava flows. On calm days, it looks like individual pots of water, but when the water is turbulent, the water appears to be boiling.

Even on calm days, swimmers have drowned. Strong currents, coupled with the underwater geology of tunnels, ridges and shelves, can trap them and make it impossible to resurface.

“We are quite used to the helicopters and other emergency personnel spending hours and days searching for people and often for bodies at Boiling Pots,” Hawaii County Councilmember Jennifer Kagiwada, who lives in the neighborhood, told SFGATE in an email.

She recently proposed that new signs be installed, which would list the dates of when people have died in this section of the Wailuku River, as a way of discouraging visitors from bypassing the other warning signs already there. 

“Since about half the deaths in this part of the river were visitors and half locals, it is important that everyone becomes aware of the dangers here. Some very strong swimmers have died, along with visitors with fewer water skills,” she said.

This strategy has worked on hiking trails, such as at Olomana Trail on Oahu, where six hikers fell to their deaths within a 13-year time span. Since its sign was posted two years ago, there have been zero fatalities on the windward trail. On Kauai, the Kalalau Trail also has handmade signs counting deaths, which instruct visitors to pause and assess the waters before deciding whether or not to cross the stream.

Although an additional sign may help, Hawaii Fire Department Chief Kazuo Todd told Hawaii News Now that it can’t be placed at every point of the river, so sharing information about the dangers is important. “Educating friends, family, relatives that are visiting, or even just people getting off of various ships that are coming to port as part of the tour operations,” he said. 

Kagiwada, who held a community meeting about the new sign proposal in November, said she is in contact with the Hawaii State Department of Land and Natural Resources, which manages the state park, and is providing feedback from constituents. 

The state department told SFGATE that community input is being considered. “After any revision process, the sign may take up to three weeks (or more) to receive depending on materials in stock, and the installation date and location is to be determined,” the department said.

Editor’s note: SFGATE recognizes the importance of diacritical marks in the Hawaiian language. We are unable to use them due to the limitations of our publishing platform.