The Arnold River drains from Lake Brunner, inland of Greymouth, and is a fantastic, mellow run ideal for after work or on a relaxing weekend.
The river flows quite quickly down a steady gradient with some great surf waves, rock splats and single channel rapids. The river is used extensively by locals, the local high school and Tai Poutini polytech for teaching their outdoor rec students. It is always warm, and offers a fantastic venue, the only decent one on the Coast!, for teaching beginners. Watch out for the willow trees.
To get to the put-in; drive towards Reefton from Greymouth. Turn right at Stillwater and drive for about 6km to the signposted road on the left to the power station. Put in either down the grassy ramp to the right of the power station, or down the small gravel track that branches off to the right.
To get to the take-out; drive about 4km back towards Stillwater to the Kokiri freezing works on the right hand side. Turn to the right and park at the bridge.