The northern section of Crosslands is in Berowra Valley NP and is a less formal picnic area compared with the southern area. There is a toilet block and a few sandy beaches with direct access to the water. Here you will find a few picnic tables and shelters, as well as garbage bins. The eastern side is home to a boardwalk exploring the estuarine wetland. A pleasant area to rest and enjoy the water. Fires are only permitted in formally established fire places .