Looking for the source of the Danube in a urban setting was an interesting experience. Shout out to all the locals who helped us reach our destination!
There are not many places in Europe like Döberitzer Heide, former military training grounds turned into a nature reserve. This area of 5 000 hectares just outside Berlin was used first by the Prussians, then by the Soviet Red Army for live firing exercises, causing frequent bushfires which, strangely enough, helped create an ecologically valuable open landscape. The fact that the whole site was entirely off-limits to the public (no agriculture, no building projects, no power or transport connections) meant that plants and animals, while being menaced elsewhere, could flourish in peace in Döberitzer Heide.