Sring 2025 Programming Guide Now Available!Registration begins February 8th.Browse Here Opens in new windowFind Your Fitness Drive in 2025Register for a core-fit membership in January and receive core-fit classes for free for one month!* Terms and Conditions ApplyJoin Now Opens in new windowAdvertising and Sponsorship OpportunitiesThousands of people visit The CORE, view our Program Guide, and attend our events every year. See your name there!Find out more! Opens in new windowNew? Create an account!Create a household with us to register for programs, memberships and more!Create Account Opens in new window Lemont Park District. Experience the Fun. Program Guide Online Registration Opens in new window Weather Updates Opens in new window Calendar of Events Opens in new window Skip back to main navigation