Based on the world record nomination from Africa Records Institute (AFRI)  and Decision No. WK/USA.INDIA/580/2020/No.36, World Records Union (WorldKings) officially declared Lake Turkana is the world's largest non-subglacial underground lake on August 22, 2020.

Lake Turkana, Africa’s fourth largest and most saline lake, is a desolate wonder located in the arid desert region of the Kenyan Rift Valley, piercing the border of Ethiopia at its northernmost end. This lake is considered as the largest permanent desert lake in the world.

Also referred to as Lake Rudolf after European visitors named the lake after a 19th century Austrian prince, and Jade Lake for the verdant color of the water, Lake Turkana is a vast but shallow body of water that stretches over 150 miles long and up to 20 miles wide.

The lake is an imperative resource for peoples in the surrounding desert region, migratory birds including flamingos, cormorants, and kingfishers, and local wildlife like the Nile Crocodile, hippos, and fish such as Nile perch, tigerfish, and tilapia. Lake Turkana and its islands were designated national parks in the 1970s and 80s.

In 1997, Lake Turkana National Parks were collectively chosen as the region’s extraordinary biodiversity. While requiring the lake’s protection, Lake Turkana has since been placed on the World Heritage “In Danger” list for poor conservation practices and overdevelopment. 

According to atlasobscura