Visitors & Locals Alike at Grand Canyon South View A Rare Sight

Incredible cloud inversions are a rare event in the Grand Canyon, but every few years they are magnificent to behold. Clouds fill the canyon when the air within the canyon walls is cooler than the air above. Last Thursday, December 11, such an event took place as the south rim of the Grand Canyon filled with an undulating sea of clouds. Take a look at this time-lapse footage posted by the Grand Canyon National Park Service - the clouds really do look like ocean tides rolling in and out.