Is admission free or is there a sign up fee?

The forest preserve has no admission fee, although a permit may be required for a picnic with a group. Call first. The DP requires a permit and the rangers do check. Not frequently but you never know when they will show up.

The annual dog park pass can be used at any of the Dupage County forest preserve off leash dog parks.

There is no admission fee for humans. There a yearly fee for the use of the dog park for our furry friends!