I was scuba diving once under a jetty and saw a shiny metal object. I wasn't too sure what it was so I got closer and it looked like a trophy or something. Then I read the front of it, it was an urn! My thoughts were that it was someone's dying wish to be in the "deep blue" not realising that it's actually quite populated with life.

Most people I've met have the same sentiment, they just think of it as some ethereal thing, rather than a thriving and crazy ecosystem.

Never found out what the deal was about the urn but the local news ran an article on it a couple of weeks later and I got a chuckle