The fact that Zapdos, Moltres, and Articuno all hide there makes it seem like the sea spirit could be Lugia, but there's nothing in the sea spirit's den anyway. The sea spirit could be Kyogre or Manaphy. It's so weird and I don't get it. Why call it the sea spirit's den if it's where the legendary bird trio hides? Why not call it the lightning ice fire bird cave?
They call me Wonder-Handsome 3DS FC: 3609-1237-6725