This cave is a maze that has a specific path you need to go through to reach the end of the cave. In order to do that, you need to either go to path without a rail, or you need to go through the 2 rocks near the path. These lead you to two different rooms. You can restart the puzzle by exiting down.
From the entrance, you take the following path to get to the Eevee Room:
Up, Right, Right, Up, Left, Up, Right, Down, Right, Up.
From the entrance, you take the following path to get to the Readout Room:
Left, Left, Up, Left, Up, Right, Up, Left, Down, Left.
I've been unsuccessful thus far in navigating this hellish cave. Despite the rails-- Despite the stone markings I've tried to leave-- Despite carefully recording my passages through this place-- I'm baffled. Utterly and completely... I felt relocating here would be a leap towards progress to finding my way home. Instead I feel I've entrenched myself in the prison of this place.
Progress has once again teased me with her coy seduction. In my continual stumbling through the labyrinth, I found nestled into the wall, a large stone door. Of course, I could not open it. That would be too easy, wouldn't it? Nonetheless, I marked the trail and will return to investigate in the future. With any fortune, I'll make it through soon, as my food stock is lacking.
I have yet to be successful in making it through the stone door, wither by clever mechanic, brute force or simply digging beyond it. I don't know what kind of magic seals it. I do know that I am weak. I am thin, and exhausted-- physically, mentally, emotionally. I've clung to hope to reach Orre again for far too long. If anyone finds this-- Please apologize to my girl Snow for me. And her gift-- I would ask someone look after the Pokemon. I will rot away here, but it doesn't need to.
This is Captain Florence, signing out. Good night.