Elim is its own day. The seven mapped farms sit 145 to 155 km from Cape Town, in Cape Agulhas, near the village of Elim. Pair it with a night down here, or give it the whole drive.
Sunday is a poor day to arrive and hope. Black Oystercatcher, Strandveld and The Drift publish closed Sundays. Zoetendal is the one that is open, 10:00 to 16:00, and it has a restaurant and a place to stay. Black Oystercatcher and Strandveld also have a stay when you come on a day they are open.
Cape Agulhas Wines and Ghost Corner are pins with no phone, website or hours. Skip them until a visit fact appears. The Berrio has a phone and no hours, so call before you add it to the route.