Don't be fooled. You won't walk round the Island in a day. Even ten days tramping only skirts the northern third.
Few people can claim to have seen anywhere near the whole of Stewart Island.
However, there is much to see, even close to the only settlement of Oban . For a day-trip or stay longer, as there is a good range of accommodation . Some visitors from twenty years ago are still living here. Terrain is rugged. The Island is made of granite, some of the oldest rock in New Zealand.