Pretty fun, I played it for about 10-15 minutes. I thought the main mechanic works pretty well, and I found it interesting how one of the main challenges is to get BACK INTO the water ASAP before your breath runs out. I never died from the bears, just from getting stuck or running out of breath.

I thought it might be a slight improvement to have a visual indication of which parts of the water you are able to swim through. I kind of figured out that there's an invisible wall somewhere underneath the bears that you have to jump over, but maybe some kind of bubble animation or seaweed or something to help indicate how soon you can go back down into the water and still be able to swim forward. Unless you intended that to be part of the challenge.

While the graphics weren't what I would call "pretty," I appreciated that they are functional enough to do the job, and thus the game has a bit of a bad art charm to it ; )

I really am frustrated that the instructions I find on how to make python programs executable don't actually seem to work. There's another project out there that had the same thing going. If anyone knows how to actually use pyinstaller, that would be helpful. I do know enough, though to have python on the machine and make that run. I included a video of me trying your game. Congrats on completing it.

If you can make, make a html version or at least a compiled version of the game.
I found the theme you used very unique but I can not rate your game without playing.