Stretched between Lake Pukaki and Lake Ohau, this 368-sq-km protected area includes the rugged Ben Ohau Range along with the Dobson, Hopkins, Huxley, Temple and Maitland Valleys. It offers plenty of tramping and mountain-biking opportunities, as detailed in DOC's Ruataniwha Conservation Park pamphlet (available online), with several day trails close to Twizel.

DOC huts and camping areas are scattered throughout the park, and a more comfortable stay is available at Lake Ohau Lodge. Passing through these parts is the Alps 2 Ocean Cycle Trail, a great way to survey the majestic surroundings.