To check if you need a visa to enter South Africa, and for information how to obtain the visa, please see the following web page: http://www.dha.gov.za/index.php/immigration-services/apply-for-a-south-african-visa
The closest airport to Stellenbosch is Cape Town International Airport (CPT). The airport is about 35 km away from Stellenbosch and car rental as well as shuttle services are available at the airport for ground transportation.
By road – self drive
Leave the airport along the Airport Approach Road and follow the signs towards the N2 which is one of the main highways connecting Cape Town and Stellenbosch. Turn left onto the N2, direction Somerset West. Take the exit 33 (Baden Powell Drive) off the N2 and turn left towards Stellenbosch. Continue for about 13 km until you reach a T-junction where you turn right to Stellenbosch.
Picture credits: (left and right) Acacia forestry trial – photo credit John Wilson; (top left) Acacia pycnantha also known as Golden wattle – photo credit Jaco Le Roux; (top centre) Acacias covering country road – photo credit Pablo Souza-Alonso; (top right) Acacia mearnsii commonly known as Black wattle; (bottom) Prosopis, Loeriesfontein – photo credit Ross Shackleton.