People travel thousands of miles to sell Christmas trees on the streets of Manhattan - meet an Alaskan family who has been doing it for 21 years

• Christmas tree vendors always pop up around New York City after Thanksgiving.

• The Gilmartins are an Alaskan family who spend the holidays selling evergreens in Manhattan, and have for 21 years.

• They sleep in a camper and shower at a nearby hostel, taking 12-hour shifts to sell trees around the clock.

'Tis the season in New York City, which means miniature evergreen forests have sprouted up every few blocks. The Christmas tree-sellers have come to town.

Despite an ongoing coniferous tree shortage, vendors have come from all around North America to make some extra cash and brave the crowds and the cold. Newsday reported the market is open to practically anyone - you don't need a license to sell Christmas trees on the city sidewalks.

Business Insider spoke with the Gilmartins, an Alaskan family running a stand on 22nd Street and Ninth Avenue.

Back in 2015, AP reported they sell about 500 trees a season, earning around $14 an hour.

Married couple Tom and Michele have sold trees in Manhattan for 21 years, and their son Rory has accompanied them on the journey since he was a baby.

"What an adventure, right?" Tom told Business Insider. "We feel like we're part of this place, for sure."

Here's what it's like to sell Christmas trees on the streets of New York City: