"When I see the door, I think of the word ‘delight,'" Richmond District Blog editor Sarah Bacon told ABC News. "When people talk about walking by it, it makes their day a little happier because it's unexpected."
The story was subsequently picked up by other local news outlets, and residents soon started flocking to the park's concourse to see the tree for themselves.
And more: Park visitors have taken to stuffing the tree with notes detailing their hopes and dreams and love of cheesecake.
Andy Stone, the park department's section supervisor, told the station there are no plans to remove the "elf door" any time soon.