Nature's Lights
Elkmont Synchronous Fireflies
Great Smoky Mountains, United States4.7
Tonight
Checking tonight's sky…
Waxing Crescent · 29% illuminated
✨ Fireflies✨ Lottery Permit🛡️ Safety 5/5
Elkmont Synchronous Fireflies is one of the best places in Great Smoky Mountains for nature's own light show.
Arrive around blue hour, bring layers and a red torch, and check tonight's conditions card before you go.
Paid entry or tour required · Gates close 22:00 · Parking: Gravel lot
Loading map…
Guided night tours
Pro drawer — technical metrics
- Bortle class
- 3
- SQM
- 21 mag/arcsec²
- Elevation
- 660 m
- South horizon
- Blocked
- North horizon
- Blocked
- Moon
- 29% · Waxing Crescent
- Light dome
- North-west
- humidity
- Warm humid nights
- peak months
- Late May–Jun
- display type
- Synchronous fireflies
- moon sensitive
- true
- red light only
- true