Six of the seven victims of a flash flood in Zion National Park in Utah are from Southern California, including a Ventura County sheriff’s deputy, officials said.

The group was caught in a rainstorm while canyoneering Monday afternoon in Keyhole Canyon and disappeared, the National Park Service said in a statement. Searchers found the bodies the following days; the final victim was found Thursday.

They were identified as Ventura County Sheriff’s Sgt. Steve Arthur, 58, and his wife, Linda Arthur, 57, both from Camarillo; Robin Brum, 53, of Camarillo; Mark MacKenzie, 56, of Valencia; Muku Reynolds, 59, of Chino; Gary Favela, 51, of Rancho Cucamonga; and Don Teichner, 55, a Nevada resident.

The group set out Monday to traverse Keyhole Canyon, a winding, narrow chasm within massive rocks and mountain formations where the walls are so narrow in some areas you can’t fully extend your arms, said park spokeswoman Jin Prugsawan. The walls become slick when it rains and even when it’s hot outside, the water in the canyons is frigid.

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