What are some moments in games that showed you the blue abyss?

I'll start -Depth https://youtu.be/ECqKr_fqQMg?t=2m21sYou can play as a Scuba Diver gathering treasure from underwater wrecks while sharks chase and kill you.and obviously Endless Ocean https://youtu.be/7qsFwQjX9e8?t=9m58s