Marramarra Creek campground sits in the southern precinct of Marramarra National Park, tucked among the trees on the tranquil waters of Marramarra Creek, on the northern outskirts of Sydney near Hornsby.

The site is accessible only by foot or boat — walkers follow the gravel-surfaced Marramarra Ridge trail approximately 3. 5 kilometres from the gate off Bloodwood Road, navigating several steep sections before reaching the creek.

Boat access is also an option via the creek itself. The campground suits tent campers, caravan and camper trailer setups, and backpackers.

Activities in the area include canoeing, kayaking, fishing, bushwalking, birdwatching, and exploring the remnants of historic orchards nearby. The site can book out during school holidays and long weekends.