Tawanui Campsite is a Department of Conservation standard campsite in the Catlins coastal area of Otago, situated in an isolated clearing beside the Catlins River.

Surrounded by bush and birdsong in a verdant valley, it offers up to 60 non-powered and tent sites. Bookings are required prior to arrival. The campsite serves as a base for the Catlins River Track, which winds through silver beech forest.

Facilities include flush toilets and sinks. Fires are permitted only in designated fireplaces and subject to any active fire bans. Dogs are allowed on a leash.

To reach the campsite from Balclutha, drive south to Owaka, follow the Papatowai Highway for approximately 7 km, turn right onto Catlins Valley Road, right onto Morris Saddle Road, then left at the cattle-stop as signed.

The final approach is a narrow gravel road.