It may not be easy to get into Gramercy Park, but for one single hour on Christmas Eve, the exclusive green space will be open to all—no key required. As it’s done in years past, the Gramercy Park Block Association will host an hour of caroling within the park, allowing the hoi polloi access to what’s normally one of the city’s most exclusive enclaves.

The caroling event is a tradition held by the nearby Parish of Calvary-St. George’s, located on the northern end of the park. It begins at 6 p.m., lasts until 7 p.m., and is part of the church’s larger series of events to celebrate the Christmas season.

And that’s all well and good, but it’s also the one chance most New Yorkers get each year to enter the ritzy, normally off-limits space. There are only 400 keys that grant entry to the park, so unless you’re one of the lucky few—or know someone who is—you’re pretty much screwed. Except on Christmas Eve, apparently.

A photo posted by E$ elizabeth (@glitterdayz) on Dec 17, 2016 at 3:49pm PST

The weather forecast for Saturday is looking a bit chilly, so bundle up—and bring a flashlight, per the Block Association.

Watch: Putting Up the Rockefeller Center Christmas Tree