This is the 1770th most frequent Polish word.
wodnych
"Wodnych" means "aquatic" or "water-related" in English.
The word 'wodnych' modifies 'roślin,' indicating they are associated with water or aquatic.
Na terenie parku narodowego znajduje się wiele gatunków roślin wodnych.
In the national park area, there are many species of aquatic plants.
Here, 'wodnych' describes 'sportach,' referring to activities related to water.
W czasie wakacji uczestniczyliśmy w różnych sportach wodnych.
During the holidays, we participated in various water sports.
In this case, 'wodnych' is used attributively to describe 'środowisk,' specifying those that are water-related.