Heritage Corridor, Lemont station
Walking time from station: About 15 minutes
Multiple ziplines, climbing walls, a mountain bike course, hiking trails and more await you at The Forge: Lemont Quarries, a 300-acre recreation area stocked with just about every outdoor activity you can imagine, including mountain biking, kayaking and laser tag. Thrill-seekers should start with an unlimited explorer pass at the park's gigantic Eight Towers jungle gym and climbing course, where you can try your hand at a ropes course or cruise along two miles of ziplines.