Online System Project:

Updated Mon., October 11, 2021

The park system will be transitioning to a new and improved software system from October 1 - October 17, 2021.

Please note the following:

• There will be no facility reservations (picnic areas, lodges, or beach houses), program registrations, or purchases available online or through Guest Services during this period.
• Guest Services is not able to make any reservations or put names on a waiting list during this time. The new system will be online for customers beginning at 8 a.m. on Monday, October 18, 2021.
• If you are requesting more information about Retzer Nature Center or Horwitz-DeRemer Planetarium programming, please call Retzer at (262) 896-8007.
• If you have an existing reservation between now and October 17, 2021, that you need assistance with, please leave a message at (262) 548-7801 and a Guest Services representative will return your call within 24 business hours.
• All 2022 campground reservations will open on January 1, 2022.