Officials warn against hiking on Inner Grand Canyon trails at hottest times
With three deaths at Grand Canyon National Park this month, officials are warning against hiking the Inner Canyon during the hottest parts of the day.
GRAND CANYON, ARIZONA - JULY 15: Smoke from nearby wildfires settles into the Grand Canyon on July 15, 2025 in Grand Canyon, Arizona.Wildfires sparked by lightning strikes in the area combined with strong winds, high temperatures and low humidity to quickly explode in size, burning thousands of acres and destroying the historic Grand Canyon Lodge in their wake. (Photo by Scott Olson/Getty Images)
(Photo by Scott Olson/Getty Images)
With three deaths at Grand Canyon National Park this month, officials are warning against hiking the Inner Canyon during the hottest parts of the day.
Park rangers responded to separate heat-related incidents on June 12 and 16, where hikers appeared to suffer from symptoms of heat-related illness, and despite rapid response and aerial support, they did not survive.
A 72-year-old male felt symptoms while hiking on the South Kaibab Trail, and a 67-year-old male and a 68-year-old female felt symptoms on the North Kaibab Trail.
Officials noted the investigation into the deaths is ongoing.
Summer is in full swing and that means temperatures have reached dangerous levels in the Inner Canyon, the release said. This creates conditions that can quickly overwhelm hikers during the hottest parts of the day, no matter what age.
NPS is encouraging visitors to stay off the Inner Canyon trails from 10 a.m. to 4 p.m.
Visitors can find more information about the Grand Canyon National Park and prepare for hikes online.






Comments
3 Comments
Darwin Awards for many hot weather hikers
Officials urge people not to be idiots....
It makes me laugh; you won't walk anywhere for basic needs, always support your automobile, yet you find it smart to hike for no reason after driving there.