Jerusalem Bay is accessible by a track which is part of the Great North Walk from Cowan railway station next to the Pacific Highway. The track passes through a creek gorge lined with temperate rainforest and large turpentines before opening to the bay. At the bay is an old abandoned habitation site. It opens out to Cowan Water and Broken Bay making it popular with boating and fishing enthusiasts. After the bay the track proceeds up a steep climb past Campbell's Crater and along the ridge all the way to Brooklyn. Campbell's Crater is a volcanic diatreme containing subtropical rainforest species such as Red Cedars and Cabbage Palms with a floor of ferns.