The region of Indian Lake was originally a cluster of natural lakes situated on the Miami River. As the continental glaciers left Ohio, chunks of ice broke free, melted, and formed water-filled depressions called kettle lakes. The resultant shallow, marshy, natural lakes in this region covered an area of 640 acres. Among these were Old Indian Lake, Otter Lake, Blake Lake, Sheep Pen Lake and the Buck Wheat Patch. The present and much larger lake lies along one of the country's major avian migration routes. Indian Lake is an important resting stop for birds such as Canada geese, ducks, grebes, swans, egrets and herons. Many stay over the summer to nest. Bald eagles once nested in the area but are no longer found here.

• Take a hike: The Cherokee Trail, a 3-mile easy walk through brushy habitat, is located west of the camp. The Pew Island Trail, a 1-mile path, encircles Pew Island and affords a spectacular view of Indian Lake.
• Explore caverns: Zane Caverns feature illuminated two-level caves. The caves are known for their "cave pearls." Exquisite crystal-white stalactite/stalagmite formations are found in great profusion and artistic settings.