On 29 August, gathering starts at Park Lucasbolwerk at noon and launching at 13:00, followed by a finish at Park Lepelenburg and a programme until 20:00. Entry is free with reservation.
What you need to know
Most days, Utrecht’s singel is a calm piece of city scenery. On 29 August it becomes a slow procession of inflatable boats, rings and unicorns. Dobberen & Slobberen gathers at Park Lucasbolwerk at noon, enters the water at 13:00 and drifts toward Park Lepelenburg, where food and a shore programme continue from 15:30 until 20:00. Free participation does not remove planning. Stability of the inflatable, water temperature, weather, swimming ability and the journey home in wet clothes matter more than the funniest shape. Hokimi recommends treating completion of the entire route as optional. If conditions or confidence change, walking along the bank and meeting at the finish still keeps the social part of the day. A reservation manages crowd size; it does not replace an individual water-safety decision.
- Gathering is at noon on 29 August 2026; launch is at 13:00 from Park Lucasbolwerk.
- The route ends near Park Lepelenburg, with a shore programme until about 20:00.
- Participation is free but reservation is required.
- Weather, water temperature, swimming confidence and equipment may change the plan.
Hokimi field note: Inflate and leak-test equipment beforehand. Pack a waterproof bag, dry clothes and secure footwear, and never enter the water after drinking. Agree on a shore meeting point and check the organiser’s safety update that morning.
Dates, availability and external conditions can change. Confirm the latest information with the official source.
Why it may be useful
On 29 August, gathering starts at Park Lucasbolwerk at noon and launching at 13:00, followed by a finish at Park Lepelenburg and a programme until 20:00. Entry is free with reservation.
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