The phrase "red herring" originated because the u.s. navy mistook fish noises for incredibly stealthy russia submarines for years :P
Could be anything
"Red herring" as a term originates from the early 1800s. Although you're absolutely right on the larger point; the ocean is noisy and sound carries, there's no telling what it was.
Wonder what made the banging noises...?
The phrase "red herring" originated because the u.s. navy mistook fish noises for incredibly stealthy russia submarines for years :P
Could be anything
"Red herring" as a term originates from the early 1800s. Although you're absolutely right on the larger point; the ocean is noisy and sound carries, there's no telling what it was.