Ben Macdonald (L) pilots the Warren Jr., a 150 foot offshore supply boat, as it cuts a path through the ice working as an ice breaker for the commuter ferry in the waters off Hingham, Massachusetts, March 3, 2015. With its black hull rumbling against a field of broken ice, the Warren Jr. slowly eased away from a dock in the Boston suburb of Hingham on Tuesday, aiming to clear a path for some of the four ferries that carry commuters from here into the city each day. But in a sign of how long Massachusetts has been gripped by freezing temperatures, no other vessels followed, as the tide narrowed the channel behind the ocean-going supply boat pressed into service as an icebreaker. It was the 15th day of canceled ferry service since late January and the outing was meant to speed the fleet's return to service, which could still be days away. REUTERS/Brian Snyder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT)