Fireflies flash during the synchronous firefly viewing at Elkmont Campground in Gatlinburg, Tenn., June 5, 2025.

The National Park Service will start taking applications May 2 to enter the lottery for a pass to see synchronous fireflies' mating display.

Don’t miss out on the light show synchronous fireflies put on! Here’s how to see them without a Great Smoky Mountains National Park pass.

Synchronous fireflies aren’t a rare or threatened species, Nichols said, and their range extends up the Allegheny Mountains and down into Georgia.

When can you see synchronous fireflies in the Smokies? The Great Smoky Mountains National Park synchronous firefly viewing opportunity is typically an eight-night event in late May or early June ...

Dates to view the synchronous fireflies show in Great Smoky Mountains National Park have been announced. Here’s how to try to get in.

Dates to view the synchronous fireflies show in Great Smoky Mountains National Park have been announced. Here’s how to try to get in.

The 2018 synchronous firefly event begins when the sun goes down on June 7 in the Great Smoky Mountains of Tennessee.

Don’t miss out on the light show synchronous fireflies put on! Here’s how to see them without a Great Smoky Mountains National Park pass.

Synchronous fireflies aren’t a rare or threatened species, Nichols said, and their range extends up the Allegheny Mountains and down into Georgia. But Great Smoky Mountains National Park is a “hot ...