This itinerary has natural buffer built in. The Winelands days are deliberately flexible — if Table Mountain or Robben Island shifts by a day, the Stellenbosch and Franschhoek days can absorb the change without restructuring the whole week.
Keep Winelands transport honest. If everyone plans to taste wine across both days, arrange a guided wine tour or private transfer rather than expecting someone to manage tasting logistics and driving simultaneously.
Book Robben Island ferry tickets online before you travel. They sell out in summer and school holiday periods, and the experience benefits from being placed somewhere with clear time buffer around it.
Give Stellenbosch more than just estate visits. The oak-lined streets, galleries, and cafe culture deserve an hour on foot between tastings — it is what separates a good Winelands day from a schedule of transfers.
Franschhoek is easy to rush. Book one restaurant that deserves a proper meal, treat lunch as the day's centrepiece, and let the tastings follow from that anchor rather than the other way around.
If the timing falls on a Sunday evening from November to April, check whether Kirstenbosch's summer concert series is running. An outdoor picnic concert against Table Mountain is one of the most memorable Cape Town evenings for visitors.