Natural areas are open from dawn to dusk daily.
Horner Park is a 54-acre park in the Irving Park community area. The eastern boundary of the park borders the Chicago River between Montrose Avenue and Irving Park Road. In 2013, a river shoreline restoration project began, restoring 11 acres of riverbank from a thicket of invasive and weedy plants to a thriving savanna of native wildflowers, shrubs, and trees. This effort reduced invasive species and bank erosion, improved the biodiversity of the park, and provided new access to nature with trails along the river.