Here are all of the available options for public transportation in and around the City of Groton.

Amtrak New London
Union Station
27 Water Street
New London, CT 06320
T: 1.800.USA.RAIL (1.800.872.7245)

Block Island Ferry Services
2 Ferry Street
New London, CT 06320
T: 860.443.4624

Cross Sound Ferry
2 Ferry Street
New London, CT 06320
T: 860.443.5281

Greyhound Bus
45 Water Street
New London, CT 06320
T: 447.3841

Southeast Area Transit
21 Route 12
Preston, CT 06365
T: 860.886.2631
F: 860.886-6097