Het Zwarte Schaar is a largely intact ancient meander of the IJssel river, curving northward from just above Doesburg and rejoining the IJssel south of Olburgen after a total length of more than six kilometers.

The northern end remains open to the IJssel, while the southern end is dammed. The meander borders the Fraterwaard on its south, east, and north sides, and a nature reserve called de Grind lies along its eastern bank.

The waterway hosts a small marina and campsite at Doesburg, situated on the IJssel arm with an open connection to the IJssel near Dieren. The arm also includes a designated water-skiing area.

The surrounding region offers easy access to the Achterhoek, the Veluwe, and the historic Hanseatic city of Doesburg.