For example, Australian Aborigines still have stories about the huge, man-eating lizards. It was considered just a standard myth until we discovered fossils of Megalania, a huge lizard matching the description, that went extinct soon after humans came to Australia.

Closer to the actual sea level rise topic, tribes of coastal northern Australia still have names and relatively precise description of land features (mountains etc) that are now underwater, but were land until 9k years ago.

  Look up Black Sea deluge theory. Black sea was supposedly flooded (a bit later than the actual sea level rise from the ice melting after the ice age), around 7500 years ago, with levels rising up to 70m and turning it from a freshwater lake into Black Sea, and increasing its size 1.5x-2x.
  That event is one of possible explanations for the spread of what became Indo-European language/culture/people group, which a good deal of us belong to.
  Until the evidence for the Black Sea deluge was found, the Indo-Europeans were theoreticized to have come from area north of Black Sea (it is still so), but I think the initial push came from the now flooded areas.

Look up Black Sea deluge theory. Black sea was supposedly flooded (a bit later than the actual sea level rise from the ice melting after the ice age), around 7500 years ago, with levels rising up to 70m and turning it from a freshwater lake into Black Sea, and increasing its size 1.5x-2x.

That event is one of possible explanations for the spread of what became Indo-European language/culture/people group, which a good deal of us belong to.

Until the evidence for the Black Sea deluge was found, the Indo-Europeans were theoreticized to have come from area north of Black Sea (it is still so), but I think the initial push came from the now flooded areas.