 The highway passes through Wellawatte, Ratmalana, Kalutara, Wadduwa, Maggona, Beruwala, Bentota, Panadura, Kosgoda, Ambalangoda, Hikkaduwa, and Galle.At Galle, the highway runs through the city centre before continuing towards Hambantota.From Galle, the highway continues east along the south coast towards Koggala.