- Bowling Green Curbstone 5K Run/Walk Location: Preston Miller Park (3200 Park Dr). Date: Saturday, April 12, 2026. Time: 8:00 AM race start (packet pickup 7:00 AM). Cost: early registration, day-of. URL: [curbstone.org/5k]() (annual charity event benefiting scholarships; registration open per latest posting). - Western Kentucky University Earth Day Walk Location: WKU Campus (starting at Ivan Wilson Center, 745 College St). Date: Saturday, April 19, 2026 (Earth Day weekend). Time: 10:00 AM–12: