| Tuesday, December 9, 2025 | ||
| CLS Preschool Fees 2026 | 12:00 AM-12:00 AM | Crystal Lake South High School |
| Friday, December 12, 2025 | ||
| PR Ski/Snowborading trip 12/12/2025 | 3:00 PM-11:00 PM | Prairie Ridge High School:Alpine Ski Resort |
| Friday, December 19, 2025 | ||
| CLS/CLC AV Trip #2 Holiday Lights, Dec 19 - CLS Snowboard & Ski Club - ALPINE VALLEY 25-26 | 3:15 PM-10:00 PM | Crystal Lake South High School |