I bet you know about that salt cavern that collapsed at Lake Peigneur[1]. There should be a documentary on youtube where you can see the footage, including a re

I bet you know about that salt cavern that collapsed at Lake Peigneur[1]. There should be a documentary on youtube where you can see the footage, including a really big boat going "phoomph" into the whirlpool created by the bayou water filling in the cavern. Edit: here's one[2] [1] https://en.wikipedia.org/wiki/Lake_Peigneur https://en.wikipedia.org/wiki/Lake_Peigneur [2] https://www.youtube.com/watch?v=p_iZr2-Coqc https://www.youtube.com/watch?v=p_iZr2-Coqc still blows my mind