Smoky Mountain National Park is home to a unique and fascinating phenomenon: the synchronous fireflies, also known as lightning bugs. These captivating creatures put on a dazzling display that attracts visitors from around the world, making it a must-see event for nature enthusiasts.
Synchronous Fireflies in Smoky Mountain National Park

The synchronous fireflies found in Smoky Mountain National Park are a specific species known as Photinus carolinus. This species is one of at least 19 firefly species that call the park home. What sets these fireflies apart is their remarkable ability to synchronize their flashing patterns, a rare occurrence in the natural world.
Synchronized Flashing Patterns
The synchronous fireflies in Smoky Mountain National Park are known for their synchronized flashing patterns, which occur during their mating season. The males of the species flash in unison, creating a mesmerizing display that can be seen for a few weeks each year.
Habitat and Viewing Locations
The synchronous fireflies are primarily found in the Elkmont area of Smoky Mountain National Park, particularly near the Elkmont Campground. This is the prime viewing location for visitors who want to witness this natural wonder.
Viewing the Synchronous Fireflies
Witnessing the synchronous fireflies in Smoky Mountain National Park is a highly sought-after experience, and the park has implemented a system to manage the large number of visitors.
Viewing Dates
The synchronous fireflies can be viewed in Smoky Mountain National Park from June 3 to June 10, 2024. This short window of time is when the fireflies are most active and their synchronized flashing is at its peak.
Lottery System
To ensure a fair and orderly viewing experience, the National Park Service uses a lottery system to distribute vehicle passes. The lottery opens on April 26 and closes on April 29, 2024, with successful applicants being notified in mid-May.
Parking and Access
A total of 800 vehicle passes will be awarded, with each pass allowing one vehicle to park near the Elkmont viewing area. Vehicles will be directed to park at the Jakes Creek Trailhead parking lot, the Appalachian Clubhouse parking lot, and along the exit roadway. No shuttle service will be provided, as the parking locations are in close proximity to the viewing area.
Important Considerations
When visiting Smoky Mountain National Park to see the synchronous fireflies, there are a few important things to keep in mind.
Flashlights and Lighting
Visitors are asked to cover their flashlights with red or blue cellophane to minimize disruptions to the fireflies and other visitors. This helps preserve the natural environment and ensures everyone can fully enjoy the display.
Duration and Weather
The entire trip, including parking and viewing, can last between three and six hours. The display can be affected by environmental factors such as heavy rain and cool temperatures, so it’s important to be prepared for varying weather conditions.
Additional Resources
For more information on the synchronous fireflies and the viewing event in Smoky Mountain National Park, visitors can refer to the following resources:
- National Park Service Website: NPS.gov
- Recreation.gov: To apply for the lottery and purchase vehicle passes