In Canterbury Plains, New Zealand, there are no specific resort hotels mentioned, but there are notable accommodations to consider. Otahuna Lodge in Tai Tapu near Christchurch offers luxurious accommodations with views of the Canterbury Plains. Hanmer Springs, known for its alpine thermal resort, is located off the Lewis Pass highway, providing a unique experience with natural hot springs and relaxation opportunities. While there aren't dedicated spa hotels in the plains, Hanmer Springs offers a distinct retreat option.