Beaver Lake Nature Center, 8477 E. Mud Lake Rd., covers 690 acres, including 200-acre Beaver Glacier Lake. Up to 10,000 geese stop in the area during spring migration, and many return in the fall. Eight trails traverse forest, meadows, lakeshore and wetlands. Trail highlights include boardwalks, an observation tower, interpretive signs, telescopes and a bog with orchids and insect-eating plants. Guided canoe trips are offered in summer. Winter activities include cross-country skiing and snowshoeing.