Is Lake Murray Purple Martin Mega-Roost happening right now?

As of today, out of season, returns ~June. Earth Exhibit tracks the live conditions and flags it the moment it is on.

Each late summer and early fall, tens of thousands of purple martins gather at Lake Murray, South Carolina to form large communal roosts.

Birds stage over open water and marsh edges, then funnel to concentrated roost sites at dusk, creating dramatic swirling flocks visible from shore and boats.

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
Dreher Island State Park - North Shore Viewing
Saluda Dam Overlook and Dam Road Shoreline

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.