U.S. President Barack Obama will make a visit to Robben Island, where Nelson Mandela location was jailed for 18 years.
The trip comes a day after Obama visited the family members of the former president's 94-year-old, who is still critically ill in hospital.
Obama honor the positive impact provided by the anti-apartheid leader in establishing freedom in South Africa.
Obama described him as "an inspiration to the world".
Click The U.S. leader is not visiting Mandela, but Mandela family personally met and spoke by telephone with Mandela's wife, Graca Machel.
Obama's visit to Robben Island is likely to be the most moving experiences during Obama's tour in Africa, says the BBC.
Mandela was held for 18 years there, and a long history of lung disease can be traced when Mandela suffered from tuberculosis in the damp prison cell.
convey speech
Obama also will visit a community project before giving the keynote address at the University of Cape Town.
This is the same place where 47 years ago, U.S. Senator Robert Kennedy delivered his famous speech 'ripple' expectations, which provide inspiration for those who oppose the divisive racial policies.
Obama is expected to give a compliment to the achievements of South Africa over the last two decades. But Obama is also expected to emphasize that there is still much to be done to tackle poverty and disease, and strengthen democracy across the continent.
He also announced a grant of U.S. $ 7 billion over five years to improve access to electricity in sub-Saharan Africa, in partnership with African countries and the private sector.