Prahls Wall is a park on the southeast side of Lübeck's old town island. Like the adjacent parks (northern ramparts, southern ramparts, Kaisertor park), it belongs to the ramparts garden monument. It stretches for about 700 meters from the Mühlenbrücke to just behind the Hüxtertorbrücke and is picturesquely situated between the Krähenteich and the Elbe-Lübeck Canal. From here you have great views of the Lübeck Cathedral from afar across the crow pond.
To the right of the crow pond and to the left side of the channel, the park really invites not only to run but also to canoeing and picnicking (of course, only after geschaerten Laufrunde XD). Have fun and good luck :)