Cooranbong is a small town on the western shore of Lake Macquarie, about 100km north of Sydney and 30km south of Newcastle. It sits at the foot of the Watagan Mountains and serves as a gateway to the Watagan State Forest, which has good bushwalking, camping, and mountain-bike trails in the hills above the lake.
The town is quiet and largely residential. The historic buildings along Martinsville Road include the old church and Cooranbong's original post office. The Sunnyside Museum on Avondale Road holds artefacts from the Pacific Islands and the region's early Adventist history — the area was settled in the late 19th century by Seventh-day Adventists who established Avondale University here.
For most visitors, Cooranbong is a rest stop or a base for lake and forest activities rather than a destination in itself.