Ever wonder what the deepest lake in Arizona is? Here's what you want to know about the top spot for swimming, boating and more in Arizona.

From the highest peaks to the deepest chasms, the 7 natural wonders of the world will make you want to lace up your exploring ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

The daredevil skydiver believes his stunt will revolutionize and offer a safer alternative to wingsuit flying.

This is your chance to potentially claim one of 450 self-guided rafting tour permits for the Grand Canyon's Colorado River.

A German skydiver used the Grand Canyon as a backdrop to pull off an “endless skydive,” a maneuver that could theoretically ...