You decide to dive deeper and deeper down.
This weird tower looking thing was WAY bigger than you thought. You can't see much, but it looks like it might also be buried further down.
You decide to move closer, and see about how far down you can get without getting stuck in the sand like some asshole.
You want to check it out, but again, the ocean is really big. Like really really big and wide open.
You'd much prefer to stay in your submarine, but curiosity is getting the better of you.