A 700-acre slough close to Lake Superior. Habitat includes marsh, lagoon, edge areas, second growth hardwood forest, and boreal forest that attract seasonal waterfowl, songbirds, and raptors.The weathered boardwalks and trails of the Fish Creek Slough area are a popular attraction in Ashland's 100-acre Prentice Park. Bring your binoculars and hike out to the boardwalk bridge that spans part of the slough area. From this location you are perched for fantastic viewing … you might even catch a glimpse of one of the resident mute swans!