Explore more than 16,000 acres of prairies, wetlands, woodlands, trails, and parks! Located in the state's most populated county, Polk County Conservation manages numerous parks, wildlife areas, and recreational trails.Polk County Conservation offers the public year-round education and recreation programs, volunteer opportunities, and trips. Explore and learn about Iowa's natural heritage at the Jester Park Nature Center, plan a family picnic, golf on an 18-hole championship course or miniature golf course, paddle down the river, reel in a trophy fish, ride horseback along Saylorville Lake, use public hunting areas, bike on multi-use trails, and more!