9-11 a.m. at Scrub Oak Preserve, 1495 McGregor Road, DeLand. Participate in a 1-mile hike in Scrub Oak Preserve, the third preserve in this year’s challenge. Discuss the 2024-25 Explore Volusia Challenge, and learn how to register and participate. Along the way, learn about some of the native plants and animals that make Volusia County such an amazing place. Visit Explore Volusia to learn more about the Explore Volusia Challenge. For age 10 and older; children must be accompanied by an adult. Wear closed-toe shoes that can get wet. Free. Registration is mandatory. Visit Green Volusia’s Eventbrite page at www.bit.ly/green-volusia.