This county is “around the corner” from Hamburg. When I was active in the hiking club in Hamburg, I have seen a lot of the small places, but actually I have been in that county before, especially in Kiel and Lübeck – even it was of other reasons. There are a lot of cities in Schleswig-Holstein. I have been in some of them. I list the two of them, which has more than 100,000 inhabitants. There will be a link for every city/area I have been as soon as I uploaded pictures.

Kiel
Lübeck

Places I have been with less than 100,000 inhabitants:

Ahrensburg
Bad Oldesloe
Eckernförde
Geesthacht
Neumünster
Norderstedt
Pinneberg
Reinbek
Wedel
Heiligenhafen

Islands:
Fehmarn
Helgoland