This smallish cave system sits across Route 1, and trainers traveling between Leddin Town and Shrdlu Town must make their way through it to proceed. The trip through to the other side is usually short and uneventful, the caverns mostly inhabited by young Pokémon that don't pose much of a threat, but it's rumored that more powerful creatures—and possibly even fabulous treasures—await those who can find a path down into the depths.