Wings and Water in Te Anau run a 206 on floats and Volcanic Air Safaris have an Otter and a 206 on floats out of Rotorua. Theres a 206 running out of Picton too but i dont know what they call themselves. All good spots if you want to fly in some nice scenery. Operating from Te Anau will get your butthole pulling the buttons off the seats when the weather gets dicey.