Submersible ship
From DALpedia
"Well, people have made boats that can go in the air. So why not?"
-Wilham, on the creation of Submersibles
About
Submersible ships (also know as submarine, or just submersible) are ships that are capable of going underwater. Submersibles were made by the White Chimera a small nation that lives in a city buried underneath the bottom of the sea, they wished to travel to the 'surface world' and thus built the submersibles. It was thought to be the only way as being necessary as the ocean is so deep that no mage has enough energy to fight off the dangerous creatures, hold their breath and travel up the several thousand feet of water.