Is Grunion Runs happening right now?
As of Jun 19, 2026, 8:54 PM, peak season now, through ~July 15. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Watch thousands of silvery fish ride waves onto beach to spawn under moonlight - California's strangest marine spectacle.
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 |
|---|
| La Jolla Shores - San Diego |
| Cabrillo Beach - San Pedro |
| + 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.