How do you find frost in golden sun the lost age?

In "Golden Sun: The Lost Age," you can find Frost by exploring the optional area known as the "Lighthouses." Specifically, head to the "Lighthouses of the North" and search for the Frost Djinn, which is located on an island accessible via the boat. Use your Psynergy abilities to interact with the environment and solve puzzles in the area to uncover Frost. Make sure to have your party equipped and leveled up for potential encounters along the way.