This Lesser-known U.S. National Park Is One of the Best Places to See the Annual Synchronous Fireflies — What to Know

Congaree National Park in South Carolina is one of two National Park Service sites with viewing events for the annual national phenomena.

May 4, 2025 · 1 min · 62 words · John Jones

ET and April 10, at 10 a.m.

ET, with one entry allowed for each household throughRecreation.govs page for the event.

Successful applicants will find out by April 16 if they received a pass.

Synchronized Fireflies at Congaree National Park

Credit: Brett Flashnick/Courtesy of Experience Columbia SC

Cell phones cant be used, whether as a camera or a flashlight.

Synchronized Fireflies at Congaree National Park

Brett Flashnick/Courtesy of Experience Columbia SC

Synchronized Fireflies glowing in the dark at Congaree National Park

Brett Flashnick/Experience Columbia SC