The Abyss. It lies not far on the other side of the Kelp forest and is located close to Oshiera's home. Not many mer have ever gone there and is only considered a legend among the merfolk. It is the home of the Kraken, who is also named Abyss, though only Oshiera knows that. It is extremely deep and wide, with blue crystals dotting the walls that give it a soft blue light. 

Scene 1 (Mer): After hearing about this fabled Abyss/finding an old map, you decide to try to search for it. After a very long time searching for it, and traveling through what seemed like an endless kelp forest, you finally come upon a large, gaping hole. You...

Scene 2 (Humans): Knowingly, or unknowingly, going scuba diving in a place off limits, a current pulled you out to sea. After finally swimming your way out, you notice a huge, dark hole beneath you. You...

Scene 3: Make your own! :)