In a spectacular explosion of froth and spray, the Zambezi River plunges abruptly into a crack in the earth, like spilled water disappearing between two paving stones. Hitting the rocky bottom of the gorge, the water kicks vertically upwards, as though the shock of the river's sudden disappearance has flipped the world upside down, making rain fall from the ground. This soft mist drenches everything deeply and completely, showering tiny pinpricks on the skin like blood rushing back into sleepy limbs.