Tawanui Campsite is a Department of Conservation standard campsite tucked in a clearing beside the Catlins River in the Coastal Otago region, roughly two hours south of Dunedin.

Surrounded by bush-clad hills and birdsong, the isolated site offers up to 60 non-powered and tent sites on open grassy ground. Bookings are required and the DOC Campsite Pass is accepted.

The campsite sits at the trailhead for the Catlins River Track, which winds through silver beech forest and makes for an excellent day walk. Facilities are basic, in keeping with DOC's standard classification.

Dogs are permitted on a leash, and fires are allowed only in designated fireplaces when no fire ban is in effect.