The Avon River in Marlborough flows northeast for 20 kilometers from its headwaters in the rough country southwest of Blenheim to its confluence with the Wairau River. Paddlers can use the PaddleWays platform to view specific access points, water conditions, and private/public-land boundaries along this route, which are essential tools for planning a trip. The river's character is defined by its passage from a rugged source area towards the coastal plains near Blenheim. Consult the PaddleWays resource directly for the latest access details and route planning before setting out.