For Kids:

1. Spring Valley Nature Center: Explore trails and learn about local wildlife.
2. Schaumburg Township District Library: Participate in free children’s programs and activities.
3. Volkening Heritage Farm: Visit the grounds and see farm animals (admission to buildings may require a fee).

For Adults:

1. Schaumburg Sculpture Walk: Enjoy outdoor art installations throughout the village.
2. Prairie Center for the Arts: Attend free outdoor concerts during the summer.
3. Trickster Cultural Center: Learn about Native American culture and art (free admission).

Remember, while these activities are generally free, some may have suggested donations or parking fees. Always check the official websites or call ahead for the most up-to-date information on hours, potential closures, or any changes in admission policies.