Pelorus River rafting, kayaking through a movie set. Kayak New Zealand’s Most Beautiful River. on a guided rafting tour through the location of the dwarves in the barrels scene of The Hobbit: The Desolation of Smaug on Marlborough’s stunning Pelorus River will be highlighted for the adventurous soul in all of us. This highlight is a great family day trip with family photos, kayak in a safe controlled environment, with experienced guides, on an easy exciting journey down the Pelorus river.