NASHVILLE (AP) — Spring is approaching, and that means Tennessee’s state parks are scheduling another day of free hikes.

All 56 of Tennessee’s state parks will offer Spring Hikes guided by a ranger on March 21, officials said Monday.

Hikes of all difficulties will be available. Hikers are urged to have sturdy footwear and bring water, snacks, and even hiking sticks.

State parks also offer free hikes on National Trails Day, National Public Lands Day, after Thanksgiving Day and to mark the new year.

More than 3,600 people took part in First Day Hikes on Jan. 1, officials said.

Participants can find a hike on the Tennessee State Parks website.