We went on Ulva's Tour of Ulva Island, off Stewart Island at the very south of New Zealand. It was excellent. We went by water taxi to a small island off Stewart Island and Ulva, a local Maori woman, gave us a fascinating, informative and friendly introduction to the ecology and conservation of Stewart Island native flora and fauna. It was one of the highlights of our trip and well worth it. Excellent tour and superb guide - a gifted teacher!!!