I started my hike at the Niendorf Nord underground station. I then walked past the “Table with 12 Chairs” memorial into the Voßbarg park. After 20 minutes I arrived at the beginning of the Kollau hiking trail. The alternative is bus lines 21 and 284. Both stop just a few meters from the start of the hiking trail. The bus stop is called Vielohwisch. Below is the map for this hike. You will pass the Niendorfer enclosure during the hike. Even if that means 2-4 kilometers more, I would still take that with me straight away. Here you can take a break and watch a few deer while having a snack. The Kollau comes from the source on the Autobahn 7 and then the 8-kilometer hike on the Kollau hiking trail begins. At first the stream is very overgrown with bushes and trees, but the view of the Kollau is possible almost all the time. After a few hundred meters, the Kollau then flows into a retention basin and disappears a little from view. But the view over the retention basin is also nice. Here you will also find an information board about the Kollau. You can find out everything you need to know here. Take a moment and check this out if you want to learn more. Just before heading towards Niendorfer enclosure, there is another bridle path. For safety reasons, the sign clearly states where the horses and where the people should go. Most of them would have done it wrong otherwise. Glad there are arrows. You now follow the path along the Kollau and enjoy the babbling of the brook a little. I can totally relax with it. If you want, you can of course also take a leisurely detour to the Niendorfer enclosure, where you can also take a relaxed break. Shortly after the Niendorfer enclosure, you walk parallel to a railway line on the Kollau hiking trail. The stream is currently being renatured here (as of mid-2020) and still looks a little bare here and there. But that will surely get better with time. The train now disturbs the inner peace a little, but the way to the end of the hike is now not so far away. At the mouth you can sit down on a bench and listen to the rushing of the Kollau as it flows into the Tarpenbek. This makes more noise than expected.