Submersible Base Deep Core
From Star Trek : Freedom's Wiki
The Submersible Base Deep Core is a new Federation Naval Patrol base on an ocean world found by a federation star ship in the Labyrinth system and then explored by the USS Serenity on the away mission In To The Big Blue. From the results of the study it became apparent that there were similarities to the ocean world that was found by the USS Voyager in the Delta quadrant. In the depths of the ocean world a massive reactor was found. The massive reactor it was found that it was activated millions of years ago and had drawn the surface water of a planet which for some unknown reason was then pulled into what then became the ocean world. There was no information on the people who had managed to make the ocean world or why they had done it.