The Nieuwe Waterweg is a major estuary and the primary shipping channel connecting the Port of Rotterdam to the North Sea. It is a wide, open waterway characterized by significant commercial maritime traffic, the busiest shipping route in the Netherlands. This creates a primary hazard for paddlers, as the channel is frequented by large vessels including tankers and tugs. Paddlers must exercise extreme caution and will need to navigate busy harbors and locks to access the water, such as via the Buitenhaven in Vlaardingen. The water body has historical significance, including events from World War II, such as the sinking of a vessel by a magnetic mine in 1940. The Nieuwe Waterweg plays a crucial hydrological role as it provides the open connection to the sea that allows for the unique freshwater tidal system in the National Park De Biesbosch, located inland. The estuary itself experiences the influence of the North Sea's tides. For paddlers, key access points and facilities are associated with local water sports clubs (watersportverenigingen). These include W.S.V. De Nieuwe Waterweg in Schiedam, which offers moorings, a pier, and a clubhouse and is a first port of passage from the sea. Other nearby clubs providing potential access or services are W.S.V. De Schie on the outskirts of Schiedam and W.S.V. De Vijfsluizen located at the beginning of the Brielse Meer. Given its function as a major commercial shipping lane, the overall paddling experience on the Nieuwe Waterweg itself is one of navigating a heavily trafficked, industrial marine environment with significant exposure to wind and waves, rather than a recreational wilderness paddle.