All I have to say about the Bermuda Triangle is...
... have you ever looked at how big the region is? And it's smack in
the middle of Hurricane Country, to boot.
So the odds of ships and planes "mysteriously" disappearing in such a
wide swath of ocean is hardly implausible. Add how quickly a plane
can sink in such waters, plus the difficulty in searching for such objects
on the ocean floor, and you have a ready-made "mystery" that the
pseudoscience book and "documentary" hawkers are not going to
want to have solved any time soon.