Welcome to the Black Falls, Svartifoss.
I really think no words have ever been created for this, but talking around its edges for weeks would be enjoyable. I think the lichen gets it.
I know the raven does.
Don’t expect your tour operator to tell you about this. It’s not a human thing, and it’s their job to be a good host and look after your bodily comforts. Bodily discomforts, well, that’s for you to find out on your own.