As of Jun 19, 2026, 8:54 PM, past peak, season runs to ~July 5. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Each late spring, riparian habitats in Muju County host large aggregations of swarming fireflies visible along stream corridors and ecological parks.
The spectacle is concentrated in a 2-3 week window and is supported by local conservation and festival programs that manage viewing to reduce disturbance.
Where to see it
A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.
| Viewing spots |
|---|
| Muju Firefly Ecological Park (Main Viewing Area) |
| Deogyusan Mountain Stream Viewing Area |
| + 1 more spot, with exact coordinates and timing, in the app → |
This is the short version
This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.