A place in the Forbidden Caverns where Pokemon can still be found. After this Ice Path is the Crystal Crossing, and there are no more wild Pokemon past this point.
"I don't like going any further than this. The last time I did that was when Duncan was just a boy. He ran into the caverns during a gym battle, so I had to send Swampert, Toxicroak, and Ursaring to get him. He went past the Ice Path and almost got hurt. But they brought him back."
- Sora, reminiscent about the past.