The small landlocked country surrounded by South Africa and Mozambique is Swaziland. Its total land area is 17,364 km2, of which roughly 1% is water.
Swaziland.
That country is Swaziland
Lesotho. Swaziland is partially surrounded by South Africa as well.
There are two landlocked countries in Africa that share borders with only one other country. They are Lesotho, which is completely surrounded by South Africa, and Eswatini (formerly Swaziland), which is bordered by South Africa and Mozambique.
Lesotho
The small country of Swaziland and the Gonarezhou National / Transfrontier Park and the Kruger National/ Limpopo Park
Swaziland
Zimbabwe
Switzerland is not in South Africa. Switzerland is a land-locked country in Europe, found in the middle of France, Germany, Italy and Austria. Maybe you are confused with Swaziland. Swaziland is a landlocked country in Southern Africa. It is surrounded by South Africa and Mozambique. See related links below for maps.
Swaziland
One example of a landlocked country entirely contained within another country is Lesotho, which is entirely surrounded by South Africa. Its territory is landlocked within South Africa's borders.