PHOENIX- Rescue crews from the Phoenix Fire Department helped two families, both from out of town, down the Echo Canyon and Cholla trails at Camelback Mountain Monday after they ran out of water. Both families were rescued within an hour.

Around 12:30 p.m. Phoenix FD rescued a father and his three children off the Echo Canyon Trail after a park ranger reported the hikers were showing signs of dehydration, Phoenix fire officials said.

The family hiked to the summit and ran out of water on the way down, Phoenix FD said. The children, who are ages 4, 8 and 10, were unable to walk on their own after being out on the trail for over three hours.

Earlier, firefighters located and delivered water to three hikers on the Cholla Trail shortly after 11:30 a.m., Phoenix fire crews said. The ages of the children were 12 and 16 years old, and all three hikers were able to walk on their own.

Phoenix FD said the message is clear: Know your limits, stay hydrated and avoid hiking into the heat of the day.