Wayback Burgers will once again be hosting their annual “Free Shake Day” on the first Saturday of summer — June 25. 

Guests will receive a free 12 oz. chocolate shake when they visit in-restaurant only, and no purchase is necessary. In addition to this sweet freebie, beginning June 25 and running through July 24, guests can enter Wayback’s Summer Vacation Sweepstakes to win a grand prize of $5,000 toward an unforgettable summer getaway. During the promotion period, participants who text the keyword “vacation” to 833-990-0950 will automatically be entered to win. A winner will be selected Aug. 1.

Wayback Burgers is famous for its milkshakes. Hand-dipped and crafted to order with Blue Bunny ice cream and milk, they are available in a variety of flavors, including a new Sour Patch Kids Shake, available for a limited time now through July 8.

“We cannot think of a better way to kick off summer than the indulgence of one of our hand-crafted milkshakes. Offering our chocolate shake for free is a perfect nod to the nostalgia that both summer and the Wayback brand brings to our guests,” said Patrick Conlin, president of Wayback Burgers. “We hope to have many folks take advantage of this fun opportunity. It also provides an occasion to enjoy one of our new menu items we are cooking up special for summer.”

Other food items joining the Wayback Burgers menu for this summer only include:

• Nashville Hot Chicken — Made with breaded chicken, tossed with Nashville Hot Sauce, and topped with pickles (available June 6– Sept. 9).

• Jalapeño Ranch Fries — A perfect side to any meal, they are drizzled in Ranch and topped with jalapeños (available June 6 – Sept. 9).

• The Works Dog — Grilled hot dog served on a brioche bun, topped with onions, jalapeños, tomatoes and Wayback’s works mustard (available beginning June 6, while supplies last).