Iron Island

Iron Island is a dungeon in Sinnoh. It has 64 tiles arranged in an 8x8 square, including 8 chest tiles, 19 non-boss encounter tiles, and 1 boss encounter tile.

Pokémon

 * Tentacool
 * Wingull
 * Tentacruel
 * Pelipper
 * Finneon
 * Zubat
 * Geodude
 * Onix
 * Golbat
 * Graveler
 * Steelix (boss)