In the morning we were visited by an old guy in rubber boots. He was very friendly and bubbled away in Bosnian/Serbian/whatever. Unfortunately, we didn’t understand a single word. He stayed with us until we left, sometimes watching our every move, sometimes not caring at all.
We continued to cycle along the Drina, on mostly flat roads, through village after village (often a village would begin just a few meters after the previous one ended). We had a bit of a head wind, though, which became worse when we followed the river to the west.
The weather was nice and around noon we stopped to unpack, dry, and clean all our stuff in the sun.
About an hour or two from Brčko, when we were already fighting the head wind, the sky darkened. We found a hotel in town just in time before the thunderstorm hit.