For competitors from outside the EU:
Legally, Polish borders remain closed for travelers from outside EU. But, there is a permit for sports: 9. foreigners whose arrival takes place in connection with the participation, as a competitor, member of the training staff, doctor, physiotherapist or referee, in international sports competitions organised on the territory of the Republic of Poland by an international sports federation operating in Olympic or Paralympic sports or another recognized by the International The Olympic Committee or organized by an international sports organization with a continental range belonging to such a federation or a Polish sports association, as well as accredited journalists, after documenting to the Border Guard officer the fact of the competition, the date and nature of participation in a relevant letter issued by the organiser of the competition or certified by the Polish sports association competent in given sport. Each of these cases is considered individually by the Polish Border Guards. So sailors from outside of EU that would like to join the event, need to provide a scan of their passport and details about their flight (or other way of crossing the borders), preferably directly to Anna (email Anna Kuder <firstname.lastname@example.org>). She will let the Border Guards know about our event and try to obtain permits for the crews.