Tweet These guys sure know to make videos! Nexus Catamarans is a builder of high quality catamarans based out of St. Francis Bay, South Africa. South Africa is one of the top three builders of catamarans in the world today and it’s easy to see why in this video.  Mark Paarman is the force behind Nexus Catamarans, driven by a desire to access remote surfing spots and avoid the increasing crowding of land-based surf resorts. The result: Nexus Catamarans.