You had many adventures in your youth, @pjpavan. I'm glad the "traditions" prompt brought some of them to mind! The river house sounds like a wonderful place for family traditions.
I thought I would ask about this one word. I think you probably mean "swim" instead of "sin."
It is clear that many of the members of my family spent time together and others with the family I had formed, on many occasions we played family games, we also sat down to talk, the cousins went to the river to sin, while cousins and some aunts stayed bathing in the pool that had the river house, the little ones stayed watching the different species of animals that my uncle had in his care.
Thank you very much for your comment, the truth is that while some of us were fishing, others were swimming.