I have always been fascinated with and terrified of the ocean.
I think it’s a fairly common fear, the ocean is vast, unexplored, and what we do know of it is beautiful but terrifying. One of my favorite Youtube channels has done a few ocean-themed videos:
5 Most Mysterious Underwater Sounds Ever Recorded, Mariana Trench, 5 Extraordinary Sea Creatures just to name a nightmare inducing few.
If you ever get a chance to go to the Georgia Aquarium, you should go. It’s expensive but the souvenirs are comparatively reasonable, lunch not so much. 3 years ago it was $3 for a bottle of Coke so I doubt the price has gone down or anything. Still, totally worth it.

Below a whale shark. See, totally worth it. Amazing.
As a person who loves fish, it seems strange that I’ve always had nightmares about fish and whales. I can’t actually recall any specific dreams about the ocean, just things that live in it. The dreams often sound ridiculous or even cartoonish: start at the 10 minute mark. But all of them have a really ominous tone about them. A fish tank, a swimming pool, something with dark green-black murky water. Something is moving in the water.
Something big.
Often it’s a whale. A huge whale where there should be no whale. I can’t see the whole thing because it’s so big. It breeches the surface, and sinks back down into the darkness. Just typing it out is really uncomfortable to me. I am drawn to and at the same time repulsed by whales. On a spiritual level which I rarely discuss here (or anywhere for that matter), I have bits and pieces and hints of what it all means but at the moment, I’m choosing to deny and ignore it all. I’ve had these bad dreams since I was a child and I’ll probably have them until I’m an old(er) lady.

Oh, that’s not terrifying AT ALL.