A funeral is set this week for a 20-year-old Minneapolis man died while swimming in a waterfall-fed pool in Hawaii, authorities said.

Searchers recovered the body of Myles A. Osgood from the pool below Rainbow Falls on the island of Hawaii March 31, the day after he went under while swimming with others in the Wailuku River, according to the Hawai‘i County Fire Department.

Local news outlet Big Island Now said it received an e-mail from Osgood’s aunt saying he was on the Big Island with friends.

The 80-foot Rainbow Falls is in Wailuku River State Park and is renowned for the rainbow that forms from its mist on many mornings. A sign at the pool’s edge warns “Danger Keep Back.”

Osgood’s death is the fourth since late November in the river. As recently as late January, a 28-year-old Chicago woman was swept away in the swift waters. Her body was recovered four weeks later.

A popular hiking website in Hawaii says the Wailuku River, the state’s longest at 28 miles, translates roughly to River of Destruction in the native language and accounts for 25 percent of river drownings in the state.

The parents of the 2016 Washburn High School graduate have started a fund to raise money in their son’s name to go toward encouraging snowboarding for children who otherwise could not afford the activity.

“One of Myles’ favorite things to do was snowboarding,” Robert and Kris Osgood wrote on the fundraising web page. “He began in 8th grade and it changed his life. He was so committed to the sport; he became a snowboard instructor and coach and positively affected many children beginning their snowboarding careers.”

Friday’s service is at 3 p.m. at Mount Olivet Lutheran Church in Minneapolis, with burial to follow at nearby Lakewood Cemetery.