Sunshine Causeway is a four-lane causeway that connects Downtown, Mayani and South Island, Mayani Beach via Mangrove Bay.
The causeway is the main way of transport between mainland Mayani and the islands. At entrance in South Island the road becomes Palm Avenue that goes through the central part of South Island before ending at Beach Drive. Before entering the mainland, the causeway turns into Truman Bridge that goes across into Downtown before it turns into a elevated highway that is yet to be named.