Read it from the man himself (Dönitz). In october 1939 he allready ordered boats to Gibraltar and on 22 october he said U26 was eventually (after minelaying ops) to get into the west med. I uploaded the warlog into my filefront page. I don't remeber how I got it, but I'm sure it's from someone in here.
http://files.filefront.com/U+boat+mo.../fileinfo.html