DERBY — Osbornedale State Park at the Kellogg Environmental Center, 500 Hawthorne Ave. in Derby, will host a nature hike from 10 to 11 a.m. Saturday.

Children and adults are invited to learn about biodiversity while walking the Kestrel and Bull Pen Pond trails. Participants will meet in the Kellogg Environmental Center to begin. It is a mild, one-mile hike with some hills over forested terrain, rain or shine.

Admission is free and registration is recommended. For more information and to register, call 203-734-2513. The Kellogg Environmental Center, is open Tuesday through Saturday from 9 a.m. to 4:30 p.m.