Why is finding something at the bottom of the ocean so difficult?

Finding the Titan 's wreckage—or anything else at those depths—is hard.

https://arstechnica.com/science/2023/06/why-is-finding-something-at-the-bottom-of-the-ocean-so-difficult/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social