Hurunui River overview The Hurunui is the most important River in Canterbury for paddlers. It has navigable flows all year round and offers a good variety of whitewater runs.  From Lake Sumner down, there are a variety of runs, catering for all types of paddlers. Upper Hurunui (described as one run) Lake to Sisters (I/II) … Continue reading Middle Hurunui River: Hawarden Gap (II+)