I’ve seen a Youtube video of a man throwing a big rock in a glacier river at Matanuska glacier and the camera man asked “Is that an echo?”
I browsed the comment section and the comment theme tells me it is dangerous and death awaits when you dive.
In: Planetary Science
I mean, it’s a very deep slippery hole with freezing cold moving water…
You could easily get seriously injured falling in, not be able to climb out, rapidly become hypothermic, then drown.
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