This nature reserve is a typical polder landscape. Bordering on the Kleiputten (Clay pits) of the old Saint Donaas Fort this area alternates low-lying damp meadows and high-lying grasslands.
The polder region is crossed by the historic Cantelmo line and by the Hoeke canal. The rich reed beds of these watercourses and the reed marsh of the old Saint Donaas Fort ensure this area is not only relevant to all kinds of meadow birds but also provides a biotope for reed bed birds. On the plots owned by Natuurpunt a number of pools were built and hedges planted, landscape elements that restore the small scale and richness of the agricultural area of yesteryear.