The Castle Ridge Shamrock Shuffle 5K is an endurance event held at Castle on the Lake in Centralia, IL. The event celebrates Lucy Lou Boss, a young girl battling leukemia. Participants are encouraged to wear St. Patrick's Day attire. Awards will be presented to the top male and female runners in various age categories. The event promises a day of food and fun, aiming to support Lucy Lou and her journey. Packet pickup and late registration are available on the day of the event at the Castle Ridge Restaurant.