boater/sailor
Just hiker/biker. Traveller. Yet sailing below 10m2 doesn't count. I used to bike and swim either in Kryspinów or in Przylasek or so.
Beautiful mountain trials and nice lakes are close neighbours in southern Poland. Especially Żywieckie lake/Skrzyczne mountain, Czorsztyńskie lake/Turbacz mountain and most beautiful Solińskie lake in Bieszczady mountains. And many others.
I have mostly common local knowledge (in present times it means also internet) but I have seen/travelled/swam all things/lands/lakes I am talking about. Yet my roots are from this region spreading from Żywiec to Lwów, Drochobycz and far away.
Some www sites:
Vistula river
(3xW).skyscrapercity.com/showthread.php?t=790162&page=176
Świnna Poręba lake u/c
(3xW).skyscrapercity.com/showthread.php?t=562836
Yahting
(3xW).zeglarstwo.pl/
(3xW).rejsuj.pl/
Marinas in Poland
(3xW).porty.jachtowe.pl/category/porty-mariny