Enkai Island

Enkai Island is a non-canon island in Paradise known for the golden nuggets hidden on it.

Geography
Enkai Island is a densely-forested island with lush, green vegetation. The island contains a ruins where golden nuggets are said to be hidden. The ruins are overgrown with vines, moss, and shrubs and feature a small monument at the front.

Past
At one point, a civilization lived on the island. It is unknown what happened to it, but ruins and hidden golden bars were left behind.

One Piece Adventure ~The Greatest Feast in the History of Enkai Island
The Straw Hat Pirates arrived on the island in search of its golden bars. They explored the island and held a feast there, building a huge fire and dancing around it.