The Blue Caboose: East Boston's Historic Train Car Turned Ice Cream Shop (2026)

The Blue Caboose: A Sweet and Scenic Spot in East Boston

The Blue Caboose, a charming ice cream and coffee shop nestled within a historic caboose on the Mary Ellen Welch Greenway in East Boston, has become a local legend. This unique establishment, the brainchild of entrepreneurs Troy Retzer and Liz Kelley, has captivated the community with its innovative concept and dedication to preserving history.

A Journey from Abandonment to Activation

For years, the bright blue train car stood empty and covered in graffiti, a familiar sight for East Boston residents walking along the Greenway. Retzer, who had never dreamed of owning an ice cream shop, was drawn to the idea of transforming this abandoned space into a vibrant community hub. The caboose, once a kitchen for dockworkers in the 19th century, had a rich history that Retzer wanted to honor and celebrate.

The renovation process, however, was far from straightforward. The train car, dilapidated and covered in graffiti, presented significant challenges. Utility connections proved particularly tricky, with inaccurate city blueprints and distant hookups. Construction halted during winters, and biweekly meetings with city officials were necessary to navigate the complexities. Kelley and Retzer's determination and adaptability were key to overcoming these obstacles, earning them the nickname 'the little engine that could'.

A Community's Eager Anticipation

The announcement of the project on Instagram in April 2023 sparked excitement among the community. The long timeline had turned the caboose into a local legend, with residents eagerly awaiting its opening. Despite only a day's notice, the line was down the block on opening day, and they sold 350 ice cream cones. The community's overwhelming response filled Retzer and Kelley with gratitude and pride.

A Unique Offering

The Blue Caboose offers a delightful menu featuring Travel Mug Cafe's popular cold brew, matcha, iced tea, and ice cream sundaes with creative flavors like black bear, coffee cookies and cream, and salted caramel chocolate pretzel. The shop's unique setting, inside a historic caboose, adds to the charm and provides a scenic backdrop for visitors.

A Vision for the Future

Retzer and Kelley's vision extends beyond the caboose. They aim to host a grand opening with Mayor Michelle Wu and plan to enhance the area with benches, cafe-style seating, and a community garden. The ongoing construction on the Greenway will further activate the space, creating a vibrant gathering place for the community.

The Blue Caboose is more than just an ice cream shop; it's a testament to the power of community engagement and historical preservation. Retzer and Kelley's dedication to bringing this unique space to life has not only revitalized a historic caboose but has also created a beloved destination for East Boston residents and visitors alike.

As the caboose reopens next season, it will undoubtedly continue to attract attention and delight customers with its sweet treats and scenic setting. The Blue Caboose is a shining example of how a creative vision, combined with community support, can transform a forgotten space into a thriving hub of activity.

The Blue Caboose: East Boston's Historic Train Car Turned Ice Cream Shop (2026)

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