A man slipped and fell to his death while taking a picture of a waterfall Saturday, authorities said.

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Robert Durbin, of Montana, was at the Montana's Glacier National Park when he "lost his footing," according to the Missoulian. Durbin fell into a creek before being sent over a cliff and falling approximately 100 feet, the Missoulian reported.

“He wasn't wearing the proper shoes for that,” Durbin’s brother, William, told Missoulian. “I was told he had flip-flops on. It was just something silly, but I've done it. My son has done it. It was just an unfortunate accident.”

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The 26-year-old man "passed away doing what he loved," according to a GoFundMe page his family created to help defray funeral costs.

Read more at the Missoulian.