Mountain House Arthur's Pass YHA
This is the biggest spot in town with a main lodge that has private and shared rooms; there are also two separate cottages, two motel units, and backpacker dorms in the old YHA lodge. You can sign up for one of the bedrooms in the cottages, reserve an entire cottage, or choose a bed in the private or dorm rooms in the main lodge. There's one women-only bunk room. The interior design may be homely, but you can't argue with the impressive peaks right outside your window.