Main Road is the primary road you can take south to Cape Point on the False Bay side of the Cape Peninsula. It's incredibly useful, but sometimes there is traffic due to construction work. The alternative route to bypass some of this road, Boyes Drive, is a beautiful scenic road. There are several entrances to Table Mountain National Park from the road which are great hikes. Most are up-hill climbs, but some, like Peck's Valley, are steeper than others. You'll also pass the Muizenberg Shark Spotter stand from this road, though try not to distract them with too many questions (they are working, afterall). I recommend taking this road at least once, for a change of scenery, if you're going to be traveling up and down the False Bay coastline.