Boston Harbor will get temporary traffic rules for a week in 2026

The Coast Guard will temporarily change navigation rules and close parts of Boston Harbor for one week in July 2026. This means ships and boats will have to follow new routes and avoid certain areas during the "Sail Boston" event.

These temporary rules allow large events like "Sail Boston" to happen safely in busy waterways. Without them, the risk of collisions between tall ships, military vessels, and regular traffic would be too high. This is a standard operational procedure for managing major maritime gatherings.