It is also required that groups of minors have adequate supervision and that at least one responsible adult accompany each group not exceeding 15 minors. All pets must be on a leash. Numerous state parks and memorials are within easy access of every part of the state. Lodges, cabins and dining rooms are important features of Illinois Beach, Starved Rock, Pere Marquette, White Pines Forest and Giant City. Reservations for lodging should be made with lodge managers.
All state parks are open the year round.
When weather conditions necessitate the closing of park roads during freezing and thawing periods, access to park facilities is by foot only.