Cassin Young
The Boston Navy Yard hosts many attractions, including Charlestown Naval Shipyard Park. The fully commissioned and the museum ship are tied up at Pier 1 and open to the public. The Navy Yard also hosts the USS "Constitution" Museum. Dry Dock No. 1 is still used for ship maintenance for "Constitution" and "Cassin Young". In May 2015, "Constitution" entered the dry dock for three years of repairs.