Its really interesting seeing the change in amount of water from winter to summer.

Lonewoof, you have not seen geeks until you have looked

here,

here,

here, here, and here.

Was this taken with a true 7mm, or a digital 7mm (which would be more like 10mm?) as the "photo extra" info says? It feels like a 15-20mm.

Pretty pic- should be a potsdam postcard! Instantly recognisable location to the locals.