After settling the crew, Du Ge, Vito, and Barry drove a small boat to Hed Island.

Du Ge's reputation is well-known now, and bringing the fleet to the island is tantamount to provoking everyone. It's not worth exposing themselves for the sake of investigating a clue.

...

Hed Island is located in the center of the East Sea and the South Sea. One side is governed by the King of the East Sea, Mahamadu, and the other side belongs to the King of the South Sea, Safra Caniel.