Kerry-Anne and I took my mom and dad out for lunch in Simon's Town today. We stopped over at Boulders Beach to watch the African (aka Blackfooted, aka Jackass) Penguins for a while.
The conservation area, part of Table Mountain National Parks, charges a small fee to visit the 3000-strong penguin colony. If you have a half hour to spare then I'd say that the visit is absolutely worth your time.
Click here to see the conservation area on Wikimapia.