You can get a free guided walk of Erie Bluffs State Park this weekend with naturalists there to tell you all about the nocturnal world.

The Erie Bluffs After Dark event will take place Friday from 8 to 9:30 p.m. at the park about 2 1/2 miles west of Lake City on Route 5.

The hike covers 2 miles and is for ages 10 and up, according to park officials. Registration isn’t required and participants should dress for the weather, officials said.

Call (814) 833-0793 to learn more.