This is the 6783rd most frequent Dutch word.
zoelen
"Zoelen" means to wallow or bask, often referring to animals, especially pigs, enjoying mud or warmth.
Here, 'zoelen' is used in the context of an action or activity undertaken at the river, potentially meaning to relax or play.
De jongens zoelen bij de rivier na schooltijd.
The boys soelen by the river after school.
In this sentence, 'zoelen' might describe a recreational activity in the creek, demonstrating a seasonal characteristic.
In de zomer zoelen de kinderen vaak in de beek.
In the summer, the children often soelen in the creek.
Finally, 'zoelen' in this usage seems related to relaxing or engaging with the natural environment.