The nature reserve is located south of the Aper low between the villages of Apen and Augustfehn in the municipality of Apen in the district of Ammerland. It is bounded by the district road 120 in the east and by the Norderloher Kanal in the west. In the south of the nature reserve is the dike of the Aper low, which was moved in 2005 from the bank of the low to a road running south of it. Before the dyke line was moved back, there was grassland and wet meadows here, which were crossed by oxbow lakes of the Aper Tief. The grassland was mainly used for mowing. After the dyke line has been moved back, the areas between the Aper low and the dyke are subject to the natural flow dynamics and are partially flooded at high tide. This creates a floodplain landscape with river tidal flats, alluvial forests and wetland biotopes. The areas are also used for flood protection.
On the waterlogged areas, reed beds and cattails, water vapors and canary grass and sedge reeds are spreading. In the nature reserve settle u. Bay willow, St. John's wort, Marsh marigold, burnet, water ragweed, water sedge, needle bulrush, bristly rush, and thread bulrush. The nature reserve is a habitat for numerous bird species, including black-tailed godwit, snipe and redshank. The nature reserve is also an important habitat for various insects, including ground beetles and dragonflies.
In the south of the nature reserve there are two viewing platforms accessible from the road that runs along the dyke, which can be used for observing nature. Another vantage point is on a pumping station on the north bank of the Aper low near Augustfehn.