The countdown is on! Before we know it, we’ll be gathered around the tree on Christmas morning, opening presents and, later in the day, digging into a scrumptious Christmas dinner. But before the merriest day of the year arrives, we have so much to do. Where do we begin? How about starting a Christmastime bucket list and, at the very top, adding Shady Brook Farm, which hosts the best drive-thru holiday lights display in Pennsylvania?

Mark your calendar so you don’t miss the sensational drive-thru lights display at Shady Brook Farm, in Yardley, this holiday season. The annual holiday lights display generally runs from mid-November through late January.

Awash in more than three million glittering lights, Shady Brook Farm welcomes guests to drive through the attraction or to climb aboard a wagon for a winter ride around the farm to view the lights.

Open-air wagon rides are available, weather permitting, and are offered through early January. Bundle up for your ride that will include plenty of Christmas songs (you might want to sing along) and a ton of beautiful views of the twinkling lights.

If you're coming with a group to these PA drive-thru holiday lights, you can reserve a private wagon ride. Wagons typically accommodate between 75 and 80 guests.

Plan to spend at least 20 minutes driving through the holiday attraction. However, if you’re visiting on a holiday or during the weekend, be prepared for heavy crowds and a wait in line.

Meander through the attraction that features familiar faces – including Santa Claus – and countless lighthearted displays.

Turn your car's radio to 90.7 FM. Sing along to the holiday soundtrack that will get you in the Christmas spirit as you slowly drive past millions of twinkling lights.

A single drive through this magical Christmas lights display in Pennsylvania might not be enough. Shady Brook Farm offers a five-visit pass for one price.

Single-visit tickets and multi-visit passes are available online.

The admission price, which is charged per vehicle, depends on the date you visit. A flat fee is charged for mini-buses, limos, and buses.

Find more information, including dates, hours, and admission prices, on the official website of Shady Brook Farm. Or, stop by the Facebook page of this drive-thru lights display at Shady Brook Farm.

Click play below to go on a drive through the spectacular lights at Shady Brook Farm, shared on YouTube by Noel Abejo.

Have you been to the Christmas lights display at Shady Brook Farm in Pennsylvania? Do you think it's one of the best drive-thru holiday lights in Pennsylvania? Let us know in the comments! Still on the lookout for more holiday light displays to check out this Christmas season? Visit some or all of these six drive-thru Christmas light displays in Pennsylvania.

Don't forget to bring your camera along on all of your Christmastime adventures.