The Winter Mine is one of two mines in the game, the other being the Waterfall Mine. It is located at the Base of Mother's Hill, on the small island in the middle of the lake, and is only accessible when the lake freezes over in Winter. Two Power Berries can be found here. One is outside the mine, hidden around the back of the entrance. The other Power Berry can be randomly dug up on any of the 10 floors. The Ketchup Cooking Recipe can also be randomly dug up in the Winter Mine.