Cattai National Park is made up of land originally granted to First Fleet assistant surgeon Thomas Arndell. Today, the park contains a number of historic colonial buildings associated with generations of the Arndell family who farmed along the Hawkesbury.
There are two clusters of interesting historic sites within the park to explore. There's an early colonial dwelling, the 1820's National Trust-listed Cattai Homestead that features convict-built dry stone walls. There's also a dairy and grain silo complex built in the 1930's, just prior to the area becoming a recreation ground.
Roam around to explore the area's fascinating farming heritage. You'll find signage to fill you in on the history, along with machinery similar to that used by the Arndells displayed in neighbouring fields.
There's plenty of other activities at Cattai National Park while you're here take a walk from the silos to the Hawkesbury River lookout, or enjoy a barbecue lunch at one of the picnic areas.