Where Berowra Creek Opens Into Broad River Flats

Overview

Crosslands Park sits at the end of Somerville Road in Hornsby Heights, on the east bank of Berowra Creek, about 34 kilometres north-west of central Sydney. What makes it stand out in this part of the Hornsby Plateau is the contrast between steep sandstone bushland and the narrow river flats beside the creek. In a landscape mostly shaped by incised valleys and escarpments, these flatter low-lying edges are comparatively scarce, which gives the reserve a very different feel from the surrounding bushland.

The park is part of the broader Berowra Valley National and Regional Park setting, with Hornsby Shire Council managing Crosslands Reserve itself. Although it is close to suburbia, the enclosed valley, tidal creek and bushland backdrop give the place a notably tucked-away character.

Highlights

The defining scenery here is Berowra Creek itself: a broad tidal waterway edged by mangroves, backed by steep slopes and sandstone outcrops. The valley landform is a drowned river valley, and that shape is what gives Crosslands its mix of sheltered water, bush-framed foreshores and a stronger sense of enclosure than many other open spaces in northern Sydney.

Another distinctive feature is the meeting of rugged Hawkesbury Sandstone country with the creekside flats. The surrounding escarpments, visible rock faces and mature eucalypts create a strong natural frame around the lower ground, while views across the creek take in sandstone cliffs and slopes on the opposite side.

Best Time to Visit

Crosslands Park suits different seasons for different reasons. The cooler months are usually the most comfortable time for longer walks in the surrounding valley country, especially when the exposed sandstone ridges and humid creek edges can feel warmer in summer. Spring is a particularly good time to see the bushland freshen up, while the creek setting gives the park a calmer, greener feel through much of the year.

Because this is a tidal creek environment with sheltered lowlands and bushland margins, the place is often more about atmosphere than a single seasonal event. Mild days tend to show it at its best, when the contrast between water, flats and surrounding slopes is easiest to appreciate.

Plants and Animals

Crosslands brings together several quite different plant communities in a relatively small area. Around the creek are mangroves and nearby saltmarsh, while the higher ground carries bushland on sandstone slopes and escarpments. Three vegetation communities in and around the reserve are considered under-represented within Hornsby Shire: Eucalyptus pilularis – Acacia floribunda tall open forest, Casuarina glauca closed forest, and saltmarsh.

Wildlife is often easier to hear than to see. Common native mammals include bats, possums, bandicoots and marsupial mice, while birdlife is especially noticeable along the creek, with parrots, honeyeaters, cormorants, herons and other waterbirds regularly seen around the banks. Fish habitat is tied closely to the estuarine edge, with mangrove communities playing an important role for fish, shellfish and birds.

Culture and Heritage

Crosslands Reserve is part of the traditional lands of the Darug Aboriginal people. The reserve also contains Aboriginal sites and places within the broader Berowra Valley park landscape.