A unique way to travel down the scenic, historic route from Cape Town to Simonstown is by antique steam train. Atlantic Rail is a private nonprofit and operates most weekends (see the full schedule online) down the same tracks as the MetroRail. Once in Simonstown, you'll have time to explore and dine before returning to Cape Town. Because it's so popular with families, I recommend booking well in advance. For a fun and unique party idea, you can also charter the train for private trips.