Thanks all!
"Copenhagen" in Danish means "merchant's habour" and there's a good reason for that - see the city was founded at a key location between the islands of
Zealand and
Amager at an easily defendable spot with easy access to the Øresund straight where access to the Baltic sea could easily be controlled ( and at times taxed )
These days the "habour" part of the habour is almost gone and instead now we have a nice channel running trough the city with cozy waterfronts on each side..
Another relatively new things are the
habour baths - these are enclosed parts of the habour where you can swim safely under the supervision of trained lifeguards.. needless to say these are loved by kids on warm summer days..
The largest one is located in the area known as Island's Brygge not far from the city center