Kieler Woche — Kiel Week — is the world's largest sailing regatta, held for ten days in late June. Around 5,000 boats from over 50 nations race on the Kieler Förde, watched by roughly one million visitors. The racing classes range from Olympic dinghies to offshore ocean racers, and the start lines and finish areas are visible from the shoreline promenades.
The sailing is only half of it. The city centre transforms into an open-air festival: the Rathausplatz and the harbour quays fill with stages, food stalls, and markets. Concerts run every evening across multiple venues, and the traditional parade of tall ships through the inner harbour is one of the most photographed events of the year.
If you are in Schleswig-Holstein in late June, Kiel during Kieler Woche is worth experiencing — the atmosphere is genuinely festive and the sailing is spectacular. Book accommodation well in advance; the city fills completely.