One of the best light shows in the US isn’t created by pyrotechnics or lasers, but fireflies. Every year, swarms of synchronous fireflies light up the Great Smoky Mountains in North Carolina, flickering among the trees and making the forest look magical.Last year, the event was canceled due to COVID-19 but the show is back on.

Nature aficionados can enter a lottery for the chance to win one of 800 vehicle passes to drive over to the Elkmont viewing area and watch the bioluminescent fireflies in person. The show will take place from June 1 to June 8. The lottery is opening today, April 30, at 10:00 AM and will run through 11:59 PM ET on May 3.

To sign up, you need to create a recreation.gov account and pay a $1 application fee. Only one entry per household is allowed. The winners will be announced on May 7 and will have to pay $24 for a vehicle fee, which will be charged automatically to the payment method previously used to enter the lottery. For those lucky enough to be selected, the arrival time to see the display is scheduled between 6:00 PM and 8:00 PM.

Synchronous fireflies are bioluminescent beetles who synchronize their flashing light patterns as part of a mating ritual. Males fly and flash their light, and stationary females respond with a flash. Peak mating season lasts for two weeks each year, with dates varying every year.

A version of this article was previously published on April 25, 2019, and was updated on April 30, 2021, with more information.