Half an hour into the canal there were 3 red lights. This means that all traffic must wait. It's quite rare, we have only experienced it once before. After half an hour, a large barge being towed by two tugs, one in front and one behind, appeared. Then we were allowed to carry on.
Almost exactly 10 hours after leaving Bagenkop, we tied up in Rendsburg, which we know quite well by now!
It looks like we'll be here for a few days as the forecast for the next two days is quite bad.
Tomorrow, we'll buy some internet data and I'll post some pictures. This is written using the club WiFi.