Winter Island is one of the four season islands where the protagonist is able to grow items, and the second that is able to be unlocked. Unlike the Spring, Summer and Autumn islands, crops are not able to grow here. Instead, only metal ores can be grown.
This island is located at C-3 on the ocean map, at the northern extremity of the Fenith Sea.
No monsters can be found here.
Winter island is a stony outcropping of land with bone-chilling temperatures which exterminate all plant life. Only the hard minerals of the earth can grow here.
The island is circular in shape and holds one frosty cave in the center, the only Season Island not to have a tree as the entrance to the barn. It also holds one near frozen pool by the cave which you can fish Winter Fishes from.
Other than that, it's pretty barren, really. The request to find it is given by Electra.
It is important because the player can grow ores that he/she can use to forge, craft, sell, or given to Elena, who is the only one who likes metals.