Sopot Beach

Sopot sits between Gdańsk and Gdynia on the Bay of Gdańsk, and its beach runs the length of the town — several kilometres of fine pale sand on a sheltered Baltic shore. It is the middle city of the Tricity conurbation and the only one of the three that exists mainly for pleasure.

The pier is the landmark. Built in 1827 and extended repeatedly, it now runs 511 metres into the bay and is the longest wooden pier in Europe. Behind it stands the spa quarter: a nineteenth-century sea-bathing resort developed under Prussian rule, with the Grand Hotel of 1927 on the sand and Monte Cassino street running inland, and a lighthouse-topped bathhouse that has been operating in some form since the 1820s.

The shore is soft quartz sand with a very gentle slope and shallow, brackish, calm water — the Baltic here has no tide worth the name and little swell. It is warm enough to swim from about late June to August and cold outside that. Water quality is monitored and occasionally affected by cyanobacteria blooms in hot still summers, which close the beach for a few days at a time. The bay is enclosed enough that the water is brackish rather than properly salt — the Baltic's salinity here is a fraction of the ocean's, which is why it freezes in hard winters and why the swimming feels different from any sea further west.

Development is a resort town intact: hotels, restaurants and the pier promenade, with pine forest immediately behind. The beach is free, wide and sectioned by breakwaters. A concert amphitheatre in the woods and Poland's oldest running music festival keep the town busy through the summer.

The longest wooden pier in Europe, a spa tradition older than the country's current borders, and eight weeks of swimmable Baltic. Sopot is a town that works in every season and is at its best in September, when the water is still warm enough and the Tri-City has gone back to work.