Discover Leiden in a unique way during the Urban Trail
On Sunday 21 June 2026, the fourth edition of the Urban Trail Leiden will take place. This running experience takes you through the city, where sport, culture and architecture come together. You run at your own pace and discover hidden spots in Leiden. You can choose between a short (5–6 km) or long route (10–12 km). This year, you’ll also be running through the Kamerlingh Onnes Building.
How to register?
Due to our participation in the route via the KOG, a limited number of tickets are available free of charge. This requires an activation code, which you can request via Facilities. First come, first served. But you can, of course, simply register via the Urban trail Leiden website. The Urban Trail is once again supporting KWF Cancer Relief this year. Join in and experience Leiden in a whole new way!