Yes, the water in Havasu Creek, located in the Havasupai Native American reservation in the Western end of the Grand Canyon, is actually this color blue. Havasupai translated means “land of the blue-green water” and the creek is well known for this color and distinctive travertine formations. This is due to large amounts of calcium carbonate in the water that formed the limestone that lines the creek and reflects its color so strongly. This also gives the creek an interesting feature as it is ever changing. This occurs because any items that fall into the stream mineralize very quickly, causing new formations and changing the flow of the water. This causes the creek to never look the same from one year to another. The creek runs through the village of Supai, and it ultimately flows into the Colorado River.