Do you have any ideas if i buy chili/habanero powder and alcohol and make my own pepper spray, what canister should I use or a water gun to spray it? I know this might sound funny but one police said to me that if the forest has bears don't go in it. But what then, stay home all day and night?

The first photo with the animal track is not from the same set as the second ones (just a clarification).

Here are some more photos taken by me of the river: