Sandstone Slopes and Tidal Creek at Crosslands Reserve

Overview

Crosslands Reserve sits on the east bank of Berowra Creek at Hornsby Heights, about 34 kilometres north-west of central Sydney. It covers around 19 hectares and forms part of the broader Berowra Valley Regional Park, with a mix of open river flats and steep bushland rising into the surrounding sandstone country.

What gives the reserve its character is that contrast between the broad, tidal creek and the rugged slopes around it. Even though it is close to suburbia, the setting feels more like a sheltered creek valley, with mangrove-lined edges, rocky hillsides and pockets of bush framing the water.

Highlights

The reserve’s standout feature is its position beside Berowra Creek, where wide tidal water meets low river flats and steep sandstone escarpments. The creek is broad at this point, and the mangrove-lined banks add a quiet estuarine feel that is quite different from the drier ridges above.

The surrounding landscape is classic northern Sydney sandstone country, with bush-covered slopes dropping to the water and creating a strong sense of enclosure. That mix of rocky terrain, sheltered creek edges and open grassy flats gives Crosslands Reserve a softer, greener feel than many of the more exposed ridgeline spots elsewhere in the valley.

Best Time to Visit

Crosslands Reserve is at its best in the cooler months and through spring, when walking is more comfortable and the bushland around Berowra Creek feels especially fresh. Spring is also a good time to appreciate the changing plant life around the creek margins and sandstone slopes.

Because the reserve includes tidal waterside flats as well as bushland, it stays appealing across the year, but summer can feel warmer and heavier in the sheltered valley.

Plants and Animals

Crosslands Reserve brings together several distinct habitats in a relatively compact area, including mangroves and saltmarsh along the creek, open grassy river flats, and bushland on sandstone slopes. That variety supports a richer mix of wildlife than you might expect so close to Sydney.

Saltmarsh in this part of Berowra Creek is an endangered ecological community, and the mangrove edge plays an important role in the estuary by sheltering small marine life and waterbirds and helping protect the creek banks. In the surrounding bush, eucalypt forest supports birdlife typical of the Berowra Valley, including species such as the powerful owl, sea eagle and wedge-tailed eagle.

Culture and Heritage

Crosslands Reserve is part of the traditional lands of the Darug Aboriginal people. The wider Berowra Valley also contains Aboriginal sites, reflecting a long connection between people, creek systems and the surrounding sandstone country.