Jahi ravine

The Jahi ravine is the largest ravine on Ceode, going down 800,000 feet and spanning a mile wide. Lolithian class species live down here. After a few thousand feet, there is no more light, and you can't see anything besides the light coming from other fish. The deepest descent into the Jahi ravine was in 2274 in a Bewellers Inc. submersible. They only made it down 70,000 feet into the ravine before retreating due to one of the windows cracking. It was a good choice to leave because by the time the submersible had gotten back up, the window was fully broken.