Nearly 300 acres of forest and wetlands make up this peaceful nature preserve on the outskirts of Fort Wayne, Indiana. The calm forests and open meadows are perfect for a fun family hike or picnic. Marshes and swamps border a dune that developed more than 10,000 years ago after the retreat of the Wisconsin Glacier. As the glacier moved and melted away, winter winds picked up tiny bits of sand that piled into large drifts known as sluice dunes. Though most of these drifts are gone now, but Fox Island is…