Antelope Canyon is best visited exclusively through guided tours, as rain can flood quickly during the monsoon season.
can funnel into them with little notice.On August 12, 1997, a flash flood in Lower Antelope Canyon killed eleven tourists,
including seven from France, one from the United Kingdom, one from Sweden and two from the United States. There was
the valley. The lone survivor was tour guide Francisco "Pancho" Quintana, who had previously undergone fast-
ladder systems are bolted into place, and cargo nets positioned at the top of the canyon are installed. A NOAA weather radio from
the National Weather Service and an alarm horn are on hand at the fee booth. Despite improved warning and protection systems, the risk of
injury from flash floods still exists. On 30 July 2010, two flash floods in Upper Antelope Canyon left many tourists stranded on a ledge.