Paddling on Stony Creek in Victoria requires careful planning due to significant restrictions. The Stony Creek Reservoir, a domestic drinking water supply for Geelong, is managed by Barwon Water, which explicitly prohibits all water sports, including swimming, boating, canoeing, and kayaking, at all its sites. This means paddling on the reservoir itself is not permitted. However, a separate, paddlable section exists downstream: the Stony Creek Backwash. This area marks the end of the creek's journey as it flows into the Yarra River under the Westgate Bridge. The backwash is managed by Parks Victoria and presents an urban-industrial paddling environment. The experience is defined by the soaring arches of the bridge overhead and the historical context of the adjacent Williamstown Workshop and piers, offering a unique perspective on Melbourne's maritime and industrial heritage. There are no details provided on specific access points, routes, or hazards for the backwash, so paddlers must conduct further reconnaissance. The water temperature and quality for this tidal, estuarine section will vary with the conditions of the Yarra River. For any trip planning, it is critical to distinguish between the prohibited reservoir and the potentially accessible backwash, and to verify current regulations directly with Parks Victoria before launching.