A 24 km, two-day tramp through the Catlins more secret spots. The river walk takes 5-6 hours between Tawanui and The Wisp.

The loop track is a tough 4-5 hour higher altitude walk with fantastic views from the Rocky Knoll lookout.

• Road access to Wisp is via the Chloris Pass Road from Owaka Valley.

• Road access to Tawanui Campground is via Catlins Valley Road or Morris Saddle Road.