From Kummerower See, inclusively, to the mouth, the ground of the water is five feet and more below sea level.
The windkessel effect of the large surface of this lake allows reverse flows that with northern wind may last as long as a week.
The Peene Valley is one of the largest contiguous fen regions in central Europe.
[1] Thanks to its wilderness and intact nature, the river Peene and its valley is sometimes grandiloquently referred to as "the Amazon of the North".
[2] Major towns at the Peene river are Malchin, Teterow, Demmin and Anklam.