Cycling out of Berlin was just as easy as getting in using the established D3 cycle way which is the EuroVelo route 2 through this part of Germany.
Very soon on tracks skirting lakes and forests. Variable weather but warm. For the first time off cycle paths and on some busy roads.
In Muncheburg an oldish guy accidentally falls off his bike and an ambulance attends. Round the corner two cars bump into each other but not too seriously and 5 minutes later I pass a high sided lorry half toppled over the verge with police attending. I concentrate hard and move on cautiously!
No control on the border and Kostryzn is just the other side of the River Oder. This Lubuskie region was once occupied by Germany until after the War when the Germans were expelled and Poland took control.