ONE PIECE Episode 181: Ambition Toward the Endless Vearth! The Ark Maxim!
Episode 181 of 1180 of ONE PIECE, aired February 15, 2004, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Eneru defeats Zoro and Wyper. Upon seeing this, Nami follows him to a cave where his ark, Maxim, is. Luffy finally gets out of the snake, along with Aisa, only to find out the outcome of the fight against Eneru. When Aisa tells him that she knows where he is, he asks her to take him there.