The takeaway, IMHO, is twofold.

She told someone she was going for a hike.

After the fall, she crawled to water and stayed by it.

And yes, it's correct to note that she was very fortunate that the fall did not cause significant injuries. Loss of mobility would likely have been fatal. Cascade effect.

As for the late report to authorities, it's understandable. You might not exactly know what you heard, really, when you're in the moment. But it still came in time. A win is a win.