We walked 8k today from Concord West to Sydney Olympic Wharf on many of the pathways through Olympic Park.  We climbed Bay Marker which was a steep hill with the path winding around it making it a long walk up.  Then on to the brickpit ring walk which is built above the old brick works which was abandoned due to a species of frog.  After lunch at one of the many bbq parks, we headed off for the ferry but just missed it.  As it only runs each hour, we caught a couple of buses one of which went through a new suburb of Newington.