As of Jun 19, 2026, 8:54 PM, peak season now, through ~June 30. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Periodic nearshore bioluminescence in the Matsu Islands (Lienchiang County, Taiwan) produces bright blue sparks and glowing water along rocky shores.
The phenomenon is caused by bioluminescent marine organisms and is visible on calm, moonless nights when organisms are concentrated close to shore.
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 |
|---|
| Nangan Island shoreline (Nangan Township) |
| Beigan Island shoreline (Beigan Township) |
| + 2 more spots, 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.