Tucked away just around the corner from Marazion (and St Michael's Mount) is the sandy beach of Perranuthnoe. This is Penzance's closest proper surfing beach and the waves can get fairly big here. It can also get a little busy when there is a south coast swell and hint of northerly wind.
This short video was filmed on a beautiful Spring morning with the sun out and some fun little waves. There are also a few glimpses of the Mount which is just over the headland.