The Keteldiep is a waterway in Overijssel, Netherlands, located where the IJssel River flows into the Ketelmeer. It is characterized by a landscape of sandbanks and islands, including Keteleiland, Kattenplaat, Ketelplaat, Kamperplaat, and Ramspolplaat, which were artificially created or naturally formed during the construction of Dutch delta works. This area is focused on nature development and serves as a habitat for thousands of waterbirds. The paddling experience involves navigating through shallow waters between these landforms, requiring respect for the environment and awareness of variable water depths, which can challenge even experienced canoeists. The overall character is that of an adventurous, open-water route through a unique, engineered landscape where nature has taken hold.

Access to the Keteldiep requires a significant initial paddle. There are three primary launch points, each involving a journey of 2 to 3 kilometers before reaching the main area. These are the trailer ramp at Ramspol, located south of the Ramspolbrug with ample parking; Schokkerstrand near Schokkerhaven for access to the northern part; and Ketelhaven for a southern approach. A typical route through the Keteldiep itself covers approximately 15 kilometers, resulting in a total trip distance of 20 to 25 kilometers when including the journey to and from the launch site. The area is not a protected navigation channel, and paddlers should be prepared for exposure to the elements, though some shelter can be found behind the islands. The route is suitable for a substantial day trip, with the specific experience heavily dependent on weather conditions and water levels.