It seems like there is some work lined up for me in Berlin. Our son Brendon wants to install an auxiliary battery in his VW van and I have been asked, and offered, to help with the project. Hence we have spent some time over the past 24 hours looking at various campgrounds around Berlin trying to find a place that is not too far from Brendon's apartment. The place we finally settled on is the Kopernicker-Hof. Situated south-east of the city it is just outside the S-bahn "ring" and hence convenient for transport. It turned out to be a funky collection of old buildings that were once a gas works. But seems to have the necessary facilities for a lengthy stay.