The trails at Camelback Mountain are some of the most difficult to hike in Phoenix. Still, on this above 100-degree day, where the National Weather Service has issued an excessive heat warning, several first timers and out-of-town visitors are hitting the trails.
“Our hotel, they dropped us off, and they told us that they'd pick us up at the bottom of Echo (Echo Canyon trail),” a hiker told a park ranger.
At the trailheads, City of Phoenix park rangers are making sure people know the risks they are taking.
"With this heat advisory, it could be dangerous for some people who are not prepared,” a park ranger tells a group of hikers.
Park rangers suggest hikers have at least 32 ounces of water per person, per hour. Hikers should turn back around before they are half way done with their water.
Dehydration and heat-related sickness can happen quickly.
"You'll start with a headache, and then you'll start blacking out and seeing white spots, and it just goes from there,” said Sarah Magdaleno, a park ranger.
During the peak of the day she explained the heat off the rocks can be about 150-degrees.
Park rangers and first responders are urging people to listen to their bodies and don't push your limits in this heat.
"Anybody that gets sick on our trail and continues to hike, they should be ashamed of themselves. It's not recommended. You don't have to go all the way up,” Magdaleno said.
The City of Phoenix lists more hiking tips here.