Icy Passage is a significant marine waterway in Southeast Alaska, connecting the Inside Passage waters of Icy Strait with the expansive wilderness of Glacier Bay National Park and Preserve. This saltwater passage is characterized by deep, cold, nutrient-rich waters flanked by forested islands and mainland shores, creating a dynamic ecosystem that supports a rich diversity of marine life. The area is a critical habitat and migratory corridor, situated adjacent to one of the world's largest protected marine areas. Fishing here is a predominantly saltwater pursuit, with access heavily influenced by the regulations of the national park and the complex management boundaries between state and federal waters.