September 2012, Zion National Park, Utah
Zion Canyon gets narrower as you hike upstream through the Virgin River. Eventually it reaches a point where it is only 18 feet wide. The more narrow the canyon, the deeper the river. Eventually wading turns to swimming, and that's where I turned around.
Slot CanyonUtahVirgin RiverWall StreetZion Canyon NarrowsZion National Park