Update by email from Maciej Brosz:

Everything is here http://www.bojery.pl/index.php/sfpdn/nowosci/366-mistrzostwa-polski-dn-2018

Please, use a translator.
The champs are on.
On Friday there’s a warm up event on lake Niegocin, info is here   http://www.bojery.pl/index.php/sfpdn/nowosci/367-warm-up-regatta-puchar-komandora-floty-polskiej-dn
Best regards,
Maciej, P247.

From National Secretary by email:

Organisation is in progress. PC starts on Saturday.


Note: Try the Polish website for details.