Image by TeeFarm on Pixabay · Pixabay License
In the Vinony graph
Vinony's link graph records 11 inbound references to Lake Guinas, and connects out to Namibia, lake and geographic coordinate system.
The entry is geolocated on the map in landmark.
Vinony files it under Lakes of Namibia, Sinkholes of Africa and Tsumeb.
Vinony links it to 11 Wikipedia language editions.