Our Home—Where It All Started

Located just steps away from the iconic Fort Independence, Castle Island is the quintessential New England seafood shack. This location has been in the family for four generations now and is our flagship store featuring our whole menu of quality food at affordable prices. If you’re looking for the most authentic Southie seafood experience, this is the place to be.

Sullivan’s Castle Island
2080 William J. Day Boulevard
South Boston, MA 02127
617.268.5685
MondayClosed for the Season.
Tuesday Closed for the Season.
Wednesday Closed for the Season.
Thursday Closed for the Season.
Friday Closed for the Season.
Saturday Closed for the Season.
Sunday Closed for the Season.