The Heiligenbergerbeek is a small river in the central Netherlands that forms part of a well-known 16-kilometer circular paddling route around Leusden, marked by the ANWB and equipped with kayak piers along the way. The route connects the Heiligenbergerbeek with the Valleikanaal, which is the canalized river Eem. The official marked route runs counter-clockwise from the weir in the Valleikanaal, which means paddlers travel against the current on the Heiligenbergerbeek — though the current on this stretch is described as minimal, making the direction of travel largely inconsequential in practical terms.

The Heiligenbergerbeek passes through the Lockhorsterbos woods and the estate Den Treek, giving the paddle a distinctly wooded, natural character. The river eventually leads into Amersfoort, where paddlers pass under the historic Waterpoort. The city center of Amersfoort features a network of canals worth exploring as an optional extension to the main route, though at least one passage under a house in the canal system is not permitted, requiring paddlers to turn back at that point. Excursion boats are stored under a bridge in the city center canal, and passage through that section depends on whether gates on both sides are open.

At the junction between the Verbindingskanaal and the Heiligenbergerbeek, there is a kayak pier on the right side of the Verbindingskanaal where paddlers can portage to the Heiligenbergerbeek; a corresponding pier on the other side is located behind bushes. A weir on the route also requires a portage, and while kayak piers are present along the official ANWB route, the optional city center detour lacks them — though the banks are described as low enough to manage without dedicated infrastructure.

The Valleikanaal portion of the loop is considered the least interesting section of the circuit, while the Heiligenbergerbeek through the woods and estate grounds is regarded as the scenic highlight of the trip.