Episode 55

"The Holy Beast! Apis' Secret and the Legendary Island" is the 55th episode of the One Piece anime.

Short Summary
The Calm Belt is revealed to have no winds or currents as well as being the home of many giant Sea Kings. Apis forms a plan with Luffy's help and escapes the Sea Kings by riding with one's sneeze. Later, the crew reaches Warship Island, where they listen to the soporific story of the island's creation. After following Apis into a cave where a dragon is hidden, Luffy and Nami find the reason why Apis is being chased.