Imagine this filled with churning whitewater: https://upload.wikimedia.org/wikipedia/commons/7/7c/USA_10096-7-8_HDR_Antelope_Canyon_Luca_Galuzzi_2007.jpg https:

Imagine this filled with churning whitewater: https://upload.wikimedia.org/wikipedia/commons/7/7c/USA_10096-7-8_HDR_Antelope_Canyon_Luca_Galuzzi_2007.jpg https://upload.wikimedia.org/wikipedia/commons/7/7c/USA_1009... You're not coming out alive.