But the buildings stood. In 1946 Pfizer bought the yard for under a million dollars and filled those same halls with towering fermentation tanks. Groton went on to brew penicillin by the ton — enough to supply most of the United States and half the world — and helped drive the price of the miracle drug from twenty dollars a dose down to under two cents. The antibiotics perfected here traveled with medics to the front-line MASH tents of Korea, and then reached everyone else. Today that rocky point on Eastern Point holds a gleaming research campus where nearly every one of the company's medicines is shaped, in part. From a fish dock to a cure that circled the globe — the same half-mile of Thames riverbank.
Groton's stories run to the water. The town took its name from Groton, the Suffolk manor of John Winthrop, who led the founding of the Massachusetts Bay Colony; the river it sits on, the Thames, is named for London's — though locals say it plainly, "Thaymes," not the English way. They'll tell you Groton built more than seventy submarines for the fleet in a single world war, and that for decades the new boats slid down the ways straight into the Thames, the way the Nautilus did in 1954. Down at Fort Griswold every September, the town still gathers to remember the men who fell in 1781. The harbor that made Groton a target in the Revolution is the same deep water that made it the Submarine Capital of the World — the whole story turns on that one stretch of river.
Why People Visit Groton Connecticut
- Tour the free Submarine Force Museum and step aboard the Historic Ship Nautilus, the world's first nuclear submarine, berthed on the Thames.
- Walk the ramparts of Fort Griswold Battlefield State Park and climb the 135-foot Groton Monument for views over the harbor.
- Hike or bike the wooded trails of Bluff Point State Park out to its tidal coves and rocky point.
- Visit Avery Point — the Branford House mansion, the University of Connecticut campus lawns, and Avery Point Light, the last lighthouse built in Connecticut.
- Relax at Eastern Point Beach, a small family cove with breakwater views across the river mouth.
- Take a guided tour of the Gungywamp State Archaeological Preserve to see its colonial stone chambers and double stone circle.
