Te Anau is the last village before Milford Sound, with shops, for the next 120 km until Milford Sound is no petrol available, make sure you fill up your car with petrol, in Milford is one petrol station but it could happen supply is running short or card terminal dos not work. In Te Anau is one booking office of Real Journeys directly beside the tourist office. And the second one is Southern Discoveries beside Moose Pub and bar.