19 minutes in.

https://www.cda.pl/video/87170829f

That link tries to get me to install an app, how do you watch the video?

Found Season 1 Episode 6 on YouTube by searching for 'Fort Boyard Polska S01E06' but can't find a WAM scene in it?
https://m.youtube.com/watch?v=Rs1uPMhBB6E

Here it is: https://vizjer.pl/serial-online/fort-boyard-pl/58565/odcinek-6


This the old 2008 version.

The one this post is about is the 2021 renewal.

Boy that link just set off my virus scanner about six times.

Well, I don't know about any other better source (at least none that can be posted here).
Apart of some jumping windows, which can be easily closed, it should be fine.

Oh, and there is another awesome scene, from 13 min. onward, where Joanna Lazer falls, fully submerging herself, into red gunge/ketchup.

Thanks for sharing! Wish we could find a way to watch the other versions, such as the Norway one - but looks like you need to use Viaplay