Trebbin - Halbe

You quickly leave Trebbin behind and turn east immediately after the town following a curve (Image 1), cycling past a few unnamed ponds, briefly following the highway-like B101, crossing it at the B246, and then following the road to Christinendorf.

Beyond Christinendorf, you ride over a solid but potholed surface past the wind turbines, after crossing a path you pass over the airfield of the Höllenberg model flying club back into the forest, circle the Großer Gadsdorfer See (which is not particularly large...), and then proceed on a sandy path to a small row of houses on Horstweg Saalow. There you turn south and ride on a long straight stretch of solid ground to Kummersdorf. You ignore a sign pointing the 66 Lakes Route eastwards which seems to be incorrectly placed (on my route: km 14.8). The straight road is correct.

After Kummersdorf, I made a small detour to the former Soviet military airfield Sperenberg. It was once discussed as a possible site for the new large Berlin airport. Currently, the area is left to decay. My route led me past a small barrier that I did not perceive as an entry prohibition. However, the way out was blocked by an old, rusty gate with barbed wire, over which I fortunately managed to lift my bike (and myself) without problems. Since entry is obviously forbidden, I advise against imitating this.

Right behind the closed gate, I rejoined the 66 Lakes Route, which skirts Sperenberg on the east side of Krummer See. The small, sleepy village is probably glad the Berlin airport did not move here.

The Sperenberg gypsum quarries along the route are equipped with very interesting display boards on soil geology and the history of gypsum mining. More information is available here: http://www.boden-geo-pfad.de

The path through the forest in the Klausdorfer Heide is winding but well signposted. A pet boarding house at km 29.4 is audible from afar with loud barking dogs.

At km 31.2, I got really lost for the first time on the tour because a direction sign is poorly placed. It points to the left for those coming from the east (i.e., where I came from), but from the west, it also seems to point left and thus misleads. Since this path only reaches a T-junction after 2 kilometers, you only miss another signpost there. So I turned back and took the other direction... onward to Großer Wünsdorfer See.

On the east side of Wünsdorfer See, I got lost a second time because the actual course of the 66 Lakes Route does not match that shown on the Outdooraktiv maps. If you follow the marked route, you cannot cross the railway line. After two more unsuccessful attempts at the railway embankment, I found the crucial sign much further north than expected still within the village area. So: follow my marked route (or the signposts, if you don't miss them like I did).

I skipped the short detour to Wolziger See near Funkenmühle. After Lindenbrück, the path continues over sandy terrain to Zeschsee.

After Zesch am See, the local signage again differs from what is drawn on Outdooraktiv maps. You ride along an old, somewhat bumpy road to Egsdorf. The slightly more southern course on the maps would lead along an overhead power line, where the path is more like a large sandbox. So it's better to follow the designated path directly to Egsberg; this path is also very nice, leading fairly straight through the forest, initially uphill, then ending in a beautiful, long descent to Egsdorf.

In Egsdorf, you briefly ride along the busy L74 road, from which you don't see Teupitzer See.

At Mittelmühle, you could stop for a break, but on a weekday morning everything looked very deserted.

At Tornower See, the route again deviates somewhat from the maps, the actual path right along the lake is wonderful (Images 34-36).

In Tornow, you can decide whether to take another detour to Teupitz and Teupitzer See or shorten here (Image 37). I chose the option without Teupitz, probably not missing much. If I repeat the route, however, I will definitely do that.

You finally cross the A13 and get a bit lost in the forest behind it: the 66 Lakes Route is actually quite well marked here, but the map suggests riding fairly straight, while in reality, there are several detours and curves, so I can't say exactly where I rode. Eventually, I got lost a third time but only ended up a few hundred meters too early on the L74 road.

In Halbe, I made it easy for myself by following the main road to the train station. Although there is no station pub, there are two good shops right at the railway crossing where you can sweeten the wait for the train.

The RB24 runs hourly back to Berlin-Ostkreuz.