On Saturday, July 11, 2026, hundreds of participants will swim through the heart of Vathorst. An open-water route under ten bridges, along the quays of the neighborhood and right through the city water of De Laak. A sporty day with lots of atmosphere, personal stories and one common goal: raising money for cancer research. The event is organized in cooperation with Grachtenfestival Viva Vathorst, which means a unique program will be offered from morning to evening!

Everyone can participate. By swimming and raising money yourself, or by supporting a participant with a donation.

When

  • Saturday, July 11, 2026 10 a.m.-4 p.m.

Prices

  • € 40,00