https://vamospanish.com/discover/perito-moreno-glacier/

The glacier is not just visually stimulating but it is also extremely audible. Every few minutes an ice chunk will collapse and its echoes will boom from within the maze of peaks. If you’re lucky, you may see a portion of the outer wall collapse and cascade into the water. When I was there we took a boat tour around the wall. During the trip there was an explosive sound as a piece of ice the size of an apartment building gave way and created a massive wave that shook our boat, it was unreal.