Iona Tiny House
This unusual accommodation started life on the South Island in 1924—as a boat—which the current owner found, moved to Whanganui, turned it on its side, and embedded it into a hill as an exclusive accommodation overlooking the river and city. It's self-contained with a bathroom, hot tub, pool, and kitchenette, and it's less than a mile across a bridge to the city's restaurants and cafés. The tiny house is also right on the edge of the Mountain to Sea cycling trail and Whanganui's Round the Bridges walk.