As of today, past peak, season runs to ~June 20. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Each late spring, the large mayfly Palingenia longicauda emerges in massive, synchronized swarms along sections of the Tisza River in Hungary.
For a few nights the air above the river fills with short-lived adults that mate and die within hours, producing a dramatic ephemeral spectacle prized by local communities and biologists.
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 |
|---|
| Tiszafüred - Lake Tisza Visitor Center / boat piers |
| Abádszalók / Poroszló - Abádi Marina and Poroszló piers (Lake Tisza) |
| + 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.