Hikes will be held on two upcoming Friday mornings focusing on the trees at the Davidson-Arabia Mountain Nature Preserve in south DeKalb County.

The tree hikes explore natural and historical resources at the preserve. Hikes begin at 8 a.m. Friday and Sept. 20 at the preserve’s nature center, 3787 Klondike Road, near Lithonia.

Information: 770-492-5220.