Go to the beach at Stilbaai
Stilbaai is only approx 27km away, so why not stay in Riversdale if you cannot find accommodation in Stilbaai and just drive thru for the day. You will definately save a lot of money doing it this way.
Just off the N1 outside Riversdale you will find Bali Trading. It is a lovely stop to make as they have some really nice stuff that they import from Bali.
The English church
I think that this is an Anglican church, but not too sure. However they do have the most beautiful church bell, similar to the slave bells you find on the Cape Dutch farms in the Western Cape region.