The Narrows is one of the most popular areas in Zion, according to the park service. However, hiking it requires people to walk in the Virgin River, which in some places is only 20 to 30 feet wide.

Members of the Zion National Park Search and Rescue Team responded and found a 33-year-old man on Riverside Walk, a trail that leads into the Narrows.

Farther up The Narrows, near the Virgin River, other visitors "administered CPR to the woman before Zion Search and Rescue Team members arrived. The National Park Service appreciates these ...

Members of the Zion National Park Search and Rescue Team responded and found a 33-year-old man on Riverside Walk, a trail that leads into the Narrows. Other visitors were already helping him down ...

Subscribe today. A woman is dead after going on an overnight hike of the Narrows in Zion National Park, the National Park Service said. Park authorities found the woman on Wednesday, November 23.

Visitors explore The Narrows along the Virgin River on July 15, 2014, in Zion National Park, Utah. Zion National Park is among the state's biggest tourist destinations. (Sean Gallup/Getty Images) ...

“That’s hard to predict,” acknowledged Zion spokesperson Jonathan Shafer. “We close the Narrows anytime that flow exceeds 150 cubic feet per second,” he said.