Plum Island Lighthouse sits in the waters of Lake Michigan off the tip of the Door County Peninsula in northeastern Wisconsin. Because it is offshore and cannot be reached by car, it remains one of the more adventurous lighthouse destinations in Door County.
For many visitors, Plum Island is more of a place to admire from the water than a quick roadside stop. Reaching it takes a little planning, but that extra effort is part of what makes it memorable. Between the lighthouse, historic Coast Guard buildings, shoreline habitat, and wildlife, Plum Island feels wilder and more remote than many of Door County’s better-known landmarks.