Brian Navin's Cruising Guide to Germany and Denmark,
we found in our initial travels, the most useful. It majors on the North
Sea Coast and the main routes through Denmark (Little,
Belt, Store Belt and the Sound). There have been comments recently that some of the material within it is now getting out of date, although we have found it still fairly reliable. It is poor on
Harbours north of Grena, and no good for Norway, Sweden
or any other Baltic Country.