You can walk here for a small ways. Even drive a small part and you can bike this part (going south from the roundabout). So there should be a link-up between the cycling path and road on the roundabout and the footpath. Right up untill the block marker (the slashed =). I noticed this trying to plan a route on Komoot. It would not complete the walking circle because it thinks you can't go onto the foot path coming from the roundabout, when in fact you can (right on the marker).