Old Balast railway is a 1.1 mile (2,500-step) route located near Woy Woy, New South Wales. This route has an elevation gain of about 59 ft and is rated as easy. Find the best walking trails near you in Pacer App.
Good trail that follows old basalt railway
https://woywoynet.blogspot.com/2015/05/basalt-quarries-ltd-railway-south-woy.html