King George VI Falls, also known as Salto Oshi or Oshi Falls, is located on the Oshi River in the Cuyuni-Mazaruni region of Guyana. This waterfall is rarely visited. The exact height waterfall used to be unknown, but was measured in 2014 at 214 metres Though it is not as tall as it has long been thought to be, it is notable for its combination of height and great volu…King George VI Falls, also known as Salto Oshi or Oshi Falls, is located on the Oshi River in the Cuyuni-Mazaruni region of Guyana. This waterfall is rarely visited. The exact height waterfall used to be unknown, but was measured in 2014 at 214 metres Though it is not as tall as it has long been thought to be, it is notable for its combination of height and great volume of water, along with its being a sheer plunge. The overhanging cliff gives a visual illusion of a much bigger fall.