13 mei, 2021 - 16 mei, 2021 DYR 13 t/m 16 May 2021 Open Dutch Optimist Championship DYR 13 t/m 16 May 2021 Open Dutch Optimist Championship 13 mei, 2021 - 16 mei, 2021 DYR 13 t/m 16 May 2021 Open Dutch Optimist Championship Open Dutch Optimist Championship Informatie via: https://dutchyouthregatta.org Inschrijven via: https://www.manage2sail.com/nl