One Piece: Fishman Island (517-574) Episode 525 – Lost in the Deep Sea! the Straw Hats Get Separated!
Episode 523 A Surprising Fact! the Man Who Guarded the Sunny!
Episode 524 Deadly Combat Under the Sea! the Demon of the Ocean Strikes!
Episode 525 Lost in the Deep Sea! the Straw Hats Get Separated!
Episode 526 Undersea Volcanic Eruption! Drifting to the Fish-Man Island!
Episode 527 Landing at the Fish-Man Island! Beautiful Mermaids!