Lekhubu is a rock out crop which was sometime submerged in the water of the lake. Kubu is a setswana name for a hippopotamus while lekhubu means a rock outcrop. This rock outcrop is engulfed by the white sea of salt, making it to remain as an island jutting in the middle of the flats.

There is a pre-historical wall on the southern side of the lekhubu rocky outcrop which post dates the post great Zimbabweans. The wall is related to the great Zimbabwe ruins though the workmanship is not a distinctive to the great Zimbabwe ruins. The ruins are said to have been an initiation centre for initiation schools for males. The wall was 1.2m in height though much of it has now collapsed due to wild animals and water pressure running down the rocks. The wall used to have 24 loop holes which are not explained why they are there, now only 2 still exist.

Generally on the spine of the rock are some stone cairns which are 450 500 much of these cairns have deflated. This cairns are said to be markers of those initiates. On the north eastern side of the rock is an elevation protruding higher than the other elevations. This is the part where the local people have maintained their shrine. For quite sometimes the basarwa have been coming here for their prayers and offerings.
Pottery sheds are found on the site and ostrich eggshell beads. There are three traditional taboos governing the use of the island, this taboos are no hunting of wild animals, collection of wild fruits and taking away some rocks.

The Super LakeSome 40 000 years ago the remnant makgadikgadi were the largest inland lakes in Africa. Research indicates that climatic developments and earth movements over thousands and thousands years which caused dramatic changes to take place led to fracturing and tilting of the earth surface which turned the out flow of the major rivers supplying the lake to flow eastwards to Indian ocean via Zambezi flat live.
Recession of water in the lake was followed by drier conditions which occurred and enhanced the blowing of strong winds. The wind blew in sand deposits into the lake surface and filled it to the present day as a dry flat open land.

There are several routes to Kubu, all requiring four-wheel-drive, but most travel agents or tour operators can organize special trips to Kubu for those without.

The easiest route to Kubu is from Francistown. Take the Orapa road from Francistown and continue for 200km until you reach a dirt road, which intersects with the main road. There is a sign indicating Letlhakane to the left. At this crossroads take the track to the right, to the village of Mmatshumo. As you enter this village carefully measure 350m (450yd) and take the unmarked road that veers right.

This is the track to the pans, Thabatshukudu village and eventually the Nata/Maun road. If you are on the right track, it descends the escarpment a short distance outside Mmatshumo giving a breathtaking view of the pan. Approximately 26km out of Mmatshumo is an unmarked track to the right. Take this turn-off and Kubu is 18km further on.

The ruined stonewall on Kubu encloses what appears to have been an uninhabited area. Archaeologists consider it to have been a ritualistic initiation site.

The GPS co-ordinates of Kubu Island are 20°53'50" S latitude and 25°49'41" E longitude.