Raijin Island

Raijin Island is one of the three islands in the New World which someone has to take after passing through the Red Line.

It is the island which deviated the Log Pose the most. Smoker stated that he expected the Straw Hats Pirates to take this island out of the first three islands of New World since the log deviated the most to this island.

It's also the same island that the Fallen Monk Pirates saw when they entered the New World before the timeskip.

Trivia

 * Raijin is the god of thunder in Japanese mythology.