It is the largest private, single-phase development in the history of the Commonwealth of Massachusetts. The grounds feature a six-acre Harborwalk with pedestrian and bicycle paths that provide access to the waterfront, an event lawn, public art and ornate floral displays. Situated on the Mystic River in Everett, Massachusetts, and connected to Boston Harbor, Encore Boston Harbor boasts 671 spacious hotel rooms, a spa, salon and fitness center, specialty retail shops, 15 dining and lounge venues and more than 50,000 square feet of ballroom and meeting spaces.

Encore Boston Harbor features 210,000 square-feet of gaming space including more than 3,000 slot machines and 240 table games.