One Piece: Episode of Luffy - Adventure on Hand Island (2012) - The A.V. Club

As Luffy and the crew were attacked by marine warship they were forced to use Coup de Burst to escape. Crash landing on an island the crew decided to explore while some repairing is done. Upon meeting an wax artisan and learning the truth behind the island Luffy offer his help.

One Piece: Episode of Luffy - Hand Island no Bouken

One Piece: Episode of Luffy - Hand Island no Bouken

Indisputable proof that Oda had this planned from day 1 (Ch 1043+) : r/ OnePiece

Uta

One Piece (1999) - The A.V. Club

One Piece (1999) - The A.V. Club

One Piece (1999) - The A.V. Club

One Piece: Episode of Luffy: Adventure on Hand Island (2012 TV Show) - Behind The Voice Actors

One Piece: Episode of Luffy: Adventure on Hand Island (2012 TV Show) - Behind The Voice Actors

One Piece: Episode of Luffy - Hand Island no Bouken

One Piece Movie: Strong World Blu Ray Review