This eerie lake, shimmering in the heat, is so heavy with salt and other minerals that nothing lives in its waters; swimmers find it almost impossible to sink or even to submerge themselves.
People aren't sinking in that lake because it's shallow.
mnli hypothesis: People aren't sinking in that lake because it's shallow. premise: This eerie lake, shimmering in the heat, is so heavy with salt and other minerals that nothing lives in its waters; swimmers find it almost impossible to sink or even to submerge themselves.