As of today, out of season, returns ~November. Earth Exhibit tracks the live conditions and flags it the moment it is on.
In Ranomafana National Park and adjacent forests, saprophytic fungi on decaying wood and leaf litter produce a faint green-blue bioluminescence visible on dark, humid nights.
Sightings require darkness and wet conditions, and are best encountered on guided night walks along forest trails and research-station grounds.
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 |
|---|
| Ranomafana National Park Headquarters Night Walks |
| Centre ValBio Grounds and Adjacent Trails |
| + 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.