The Eastern Upper Peninsula Saint Mary’s River location of the Great Lakes is a beautifully pristine region of the UP. The river flows from Lake Superior into Lake Huron. It spans 1000's of square miles with many small and large islands and bays in both the USA and Canada. This region is a vacation paradise with wonderful views, fresh clean air, great boating, golfing, fishing, sightseeing, and much more. Browse the many pictures (PHOTO Button below) of our Spring Bay Cottage and see for yourself what a wonderful area this is. Feel free to ask questions and of course look at the reservation calendar for availability or to make your reservation.