 Kwinana Freeway, and its continuation as Forrest Highway, provide a controlled access alternative (State Route 2) further inland, which meets up with Highway 1 (as Old Coast Road) at Lake Clifton, south of Mandurah.Albany Highway (State Route 30) travels in a south-easterly direction to Albany, Western Australia.At Armadale, in Perth's south-eastern suburbs, South Western Highway (State Route 20) branches off Albany Highway, heading south towards Walpole on Western Australia's southern coast.