3 Ways to See the Synchronous Fireflies in the Smokies WITHOUT a Permit

Witnessing the incredible synchronous fireflies display in the Smoky Mountains should be on everyone’s bucket list.

While you can see this species of fireflies in many parts of the southern Appalachian Mountains, the synchronous fireflies in eastern Tennessee are known to put on the best “show.”

After all, thousands of visitors flock from all over the country to see these beauties shine bright in Great Smoky Mountains National Park every year!

The eight-day synchronous fireflies event in Great Smoky Mountains occurs only once a year, usually in late May or early June. Because of its extreme popularity, a lottery system is implemented annually to limit vehicle traffic, enhance visitor experience, and reduce any potential negative impact on the fireflies and their mating display.

With over 20,000 people applying for the lottery annually, and under 1,000 vehicles getting approved for entry, it can feel nearly impossible to obtain the coveted firefly viewing permit.

Since it’s very difficult to snag a permit in this randomized lottery system, I am going to share with you three ways to see the synchronous fireflies in the Smokies WITHOUT a permit!

synchronous fireflies great smoky mountains national park — Photo Credit: Radim Schreiber

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GREAT SMOKY MOUNTAINS NATIONAL PARK AT A GLANCE

Before diving in, here are a few highlights for planning a trip to Great Smoky Mountains National Park.

Getting There: The closest airport to Great Smoky Mountains is McGhee Tyson, which is about 1 hour and 15 minutes from the Sugarlands Visitor Center. Find affordable flights here.
Entrance Fee: No entrance fee but you do have to purchase and display a parking pass.
Where to Stay: Camp in the park or stay right outside the park in the town of Gatlinburg or Cherokee. Read my Where to Stay guide here!
How to Get Around: You’ll need to rent a personal vehicle to get around the Smokies.
Best Time to Visit: March – October
How Long to Visit: 3-5 days

Table of Contents

What Are Synchronous Fireflies?

First, did you know fireflies (or lightning bugs, for all you Midwesterners haha) are actually beetles?! I never knew that!

But synchronous fireflies aren’t the ones you see flashing all over the Midwest.

Synchronous fireflies are a special species of fireflies that flash synchronously as part of their mating display. They are one of only a couple of species in North America that do this!

Just like other firefly species, their abdomens light up from a phenomenon known as bioluminescence, but unlike other firefly species, the synchronous fireflies flash in unison during their mating season.

So, for around two hours after dusk during their mating season (usually in late May or early June), the forest lights up with thousands of tiny green and yellow lights flashing together in perfect unison.

It’s so magical that I want YOU to experience it! Keep reading to find out how!

3 Ways to See the Synchronous Fireflies in the Smokies WITHOUT a Permit

So how exactly can you see the synchronous fireflies in Great Smoky Mountains without a permit?! There are three ways!

1. Visit The Week Before Or After The Official Event

The first (and easiest) way you can see the synchronous fireflies in the Smokies without a permit is by visiting the park the week before or after the event.

For example, the 2026 event dates are May 20 – May 27, so visitors can roam freely throughout the Elkmont area (the location of the fireflies event/display) before May 20th and after May 27th.

Since the event lasts only eight days, but the fireflies’ mating display typically occurs for 2-3 weeks, there are plenty of days before and after the event to watch this phenomenon!

I have personally witnessed spectacular displays of synchronous fireflies several days before the official event!

IMPORTANT 2026 FIREFLIES DATES:

Lottery opening: Friday, April 24th @ 10:00 AM EDT
Lottery closing: Monday, April 27th @ 11:59 PM EDT
All lottery applicants will be notified if their application was successful/unsuccessful: Wednesday, May 6th
Official fireflies event viewing dates: May 20 – May 27

2. Secure An Elkmont Campground Reservation

The second way you can see the synchronous fireflies in the Smokies without a permit is by securing a reservation at Elkmont Campground.

A campground reservation during the firefly viewing event is your ticket!

Even though the official firefly viewing dates aren’t announced until April, I recommend reserving a site at Elkmont Campground six months ahead of the typical display dates…because they go fast!

By hopping on recreation.gov in late November or early December and booking a campsite for late May or early June, you have a pretty good chance of seeing the fireflies – whether during the event or not.

If you reserve a campsite during the firefly viewing event, you can use your campground reservation as your ticket!

And if you reserve a campsite just outside the firefly viewing event, you can still attempt to see the fireflies – they might still be flashing! Remember: they typically flash for 2 to 3 weeks in late May and early June.

If you don’t get a reservation, or you want to wait until the firefly viewing dates are announced, you can always check recreation.gov for cancellations. I see last-minute cancellations pop up on there all the time!

NOTE: If your campsite reservation is during the official firefly event, you will have to WALK from Elkmont Campground to the viewing area. You will not be able to park your vehicle at the trailheads. The walk from the camp store to the Jake’s Creek Trailhead is about 1 mile.

sitting in a hammock by the river at elkmont campground

pouring hot water for tea into stanley mugs at elkmont campground

3. Volunteer For The Event

The third and final way you can see the synchronous fireflies in the Smokies without a permit is by volunteering for the event. This is a great option for locals who want to attend the event and give back to the park!

To become a volunteer, visit the park’s website to apply or stop by one of the park’s visitor centers to speak to a ranger directly. Speaking to a park ranger directly will give you a better chance at not only getting approved to volunteer in the park, but could open up other, more exciting, opportunities for you – like the fireflies!

Watch the local news, follow the park’s social media accounts, and check the park’s website frequently so you can be the first to hear about volunteer opportunities in Great Smoky Mountains National Park.

Once you make that first connection with the park, a world of opportunities will open up to you! Get a head start now before the next firefly event comes around.

synchronous fireflies event in great smoky mountains national park

IMPORTANT: You used to be able to get into the event with a valid backcountry permit associated with the Jake’s Creek and Little River trailheads. But I have been told by the backcountry office that the rules have changed this year (in 2026). No overnight parking is allowed at Jake’s Creek, Little River, or the Appalachian Clubhouse during the event, unless you have a valid event parking pass.

Curious about what to expect at the event? I wrote an entire guide that walks you through the entire event – from what to do before the event to the best spot to view the fireflies!