There are plenty of ways for visitors to play, splash and explore in Warren County for free. Visit Caesar Creek State Park for swimming, boating, hiking and fossil-searching. Hike, bike or rollerblade on the Little Miami Scenic Bike Trail, one of the longest paved bike trails in the U.S. Interested in art? Visit the Franklin Murals. Take a self-guided walking tour of Springboro to learn about the Underground Railroad and visit as many as 50 confirmed safe houses. Whether you are looking to keep your kids entertained, spend time outdoors or get active, you’ll find plenty of free activities in Warren County and Southwest Ohio.