Took this tour recently and was lucky enough to have a tour guide/driver Chris who had lived on Stewart Island for 18 years. She was a wealth of knowledge and easy to listen to. She had a sense of humour. I think we travelled most of the roads on the island. We saw beautiful bays, beaches and bush. The tour was advertised as being an hour and a half long and it was exactly that. We were able to get out of the bus on occasions to take photos. I thoroughly recommend this tour and hope you are lucky enough to get Chris as the driver/guide.