The Lakes (Søerne), Copenhagen

City waters that shaped Copenhagen

The chain of three lakes curling along the edge of Copenhagen’s old core looks natural at first glance, but these waters are entirely man‑made. Beginning in the Middle Ages, streams west of the city were dammed to form reservoirs that could be flooded in times of war, turning the approach to the capital into an impassable marsh. Over the centuries, further dams created Sortedams Sø and finally Sankt Jørgens Sø, completing the broad aquatic arc that still frames the inner city today. By the 19th century the lakes had outlived their military role and became an important fresh‑water source, before gradually transitioning into a recreational landscape. Today, the historic function lingers in the geometry: the lakes are long and rectangular, separated by low dams and bridges, with stone embankments along much of the shore. It is a rare place where you can read layers of urban history simply by following the waterline.

The three distinct personalities of the lakes

Though always linked together as “The Lakes”, each stretch has its own character. To the south, Sankt Jørgens Sø is the deepest, with gently sloping shores and views towards church towers and the nearby planetarium. In the middle, Peblinge Sø feels more urban, with granite edges, sweeping bridges and a skyline of apartments, towers and spires that mirror in the water on still days. Further north, Sortedams Sø opens into one of the city’s most atmospheric vistas. Here small artificial islands such as Fiskeøen and Fugleøen provide safe nesting grounds for waterbirds, adding a faint wildness to the otherwise composed cityscape. From above, the three lakes appear as five separate basins, but subtle channels beneath the dams keep the water system connected.

Everyday life on the shoreline

The broad paths that trace both banks form one of Copenhagen’s favourite outdoor circuits. A full loop around The Lakes is a little over six kilometres, a comfortable distance for a jog, a brisk walk or a leisurely bike ride. At almost any hour, you can expect a steady flow of runners, dog walkers and commuters on two wheels using the paths as a green corridor between neighbourhoods. Benches punctuate the route, and grassy sections invite impromptu picnics when the weather allows. On calm mornings, the surface reflects pastel skies and church towers; by late afternoon, the soundscape shifts to overlapping conversations, bicycle bells and the soft splash of coots and swans. Cafés and casual eateries cluster along sections of the shore, making it easy to turn a simple stroll into a coffee stop or informal brunch by the water.

Seasonal moods from ice to endless evenings

The Lakes are as much about changing seasons as they are about scenery. In winter, bare trees etch dark lines against low Nordic light, and thin ice often skins the surface. In particularly cold spells, the authorities may open parts of the lakes for supervised skating, transforming the basins into an open‑air playground of gliding figures, snow‑dusted ice and the occasional snow sculpture built atop the frozen water. Spring brings a sharp shift in mood as daylight returns and birdlife intensifies around the nesting islands. By summer, the entire shoreline becomes an urban beach of sorts. Pedal boats, sometimes shaped like swans, dot the southern stretches, while the balustrades of Dronning Louises Bro turn into a social amphitheatre. Here, “bridging” – the Copenhagen ritual of sitting shoulder to shoulder on the bridge with drinks and snacks – stretches golden evenings late into the night.

Architecture, bridges and city views

One of the quiet pleasures of exploring The Lakes lies in the constant play between water and architecture. Along the eastern banks, 19th‑century apartment facades line up in stately rows, their gables and dormers reflected in the water. Occasional pavilions and terraces reach over the surface, including historic structures originally built for winter skating clubs and later adapted to modern uses. From several points, you can trace the skyline of Copenhagen in a single sweep, from copper‑clad church spires to contemporary glass façades. Bridges stitch the neighbourhoods together and offer natural pause points for photographs. The result is both grand and intimate: a sequence of long views and small details that rewards slow, repeated visits at different times of day and year.