The Big Scrub Loop walking track is in Nightcap National Park, near Lismore, New South Wales. The track passes through magnificent subtropical rainforest dominated by enormous fig trees, Giant Stinging Trees and huge buttressed Yellow Carabeen. The Nightcap Range has been designated an Important Biodiversity Area (IBA) by Birdlife International. The key IBA bird species found in the park are the Albert's Lyrebird, Green Catbird, Pale-yellow Robin, Australian Logrunner, Paradise Riflebird, and Regent Bowerbird.