Thames River Heritage Park | Groton

Thames River Heritage Park is a collection of historic sites and natural areas situated along the Thames River in Groton, Connecticut.

This park preserves and interprets the maritime and industrial history of the region, offering access to significant waterfront locations.

Visual Characteristics

The park encompasses various sites. The Submarine Force Library and Museum features the USS Nautilus, a steel submarine. Fort Griswold State Historic Park contains a granite fort structure. The Avery Point Lighthouse is a white, conical tower. The natural areas include riverfront access with varying vegetation, from manicured lawns to more naturalized shorelines.

Location & Access Logistics

The park's main access points are distributed along the Thames River in Groton. The USS Nautilus Museum is located at 1 Crystal Lake Road, Groton, CT 06340. Fort Griswold is at 57 Fort Griswold Road, Groton, CT 06340. Avery Point is accessible via Avery Point Road off Route 12. Parking is available at each individual site, with dedicated lots for visitors. Public transport options are limited; local bus routes may serve areas near the park entrances, but direct access to all components via public transit is not guaranteed.

Historical & Ecological Origin

Fort Griswold was constructed in 1775 and played a significant role in the American Revolutionary War. The USS Nautilus (SSN-571) was commissioned in 1954, marking the world's first nuclear-powered submarine. The Avery Point Lighthouse was built in 1905. The ecological context is a tidal river estuary, supporting diverse aquatic and riparian life.

Key Highlights & Activities

Visitors can tour the USS Nautilus submarine. Exploration of Fort Griswold includes climbing the ramparts and visiting the museum. The Avery Point Lighthouse grounds offer views of the river. Walking paths are available at several locations within the park. Educational programs are offered seasonally at various sites.

Infrastructure & Amenities

Restrooms are available at the USS Nautilus Museum and Fort Griswold. Shade is provided by trees in natural areas and within the museum facilities. Cell phone signal (4G/5G) is generally available throughout the park. Food vendors are not consistently present within the park itself, but are located in the surrounding city of Groton.

Best Time to Visit

For optimal lighting on the USS Nautilus and Fort Griswold, early morning or late afternoon is recommended. The best months for visiting are May through October, when weather conditions are most favorable for outdoor exploration. Tidal conditions do not significantly impact access to the primary park sites.

Facts & Legends

A notable historical oddity is that the USS Nautilus was the first vessel to travel submerged under the North Pole in 1958. A local legend suggests that during the Battle of Groton Heights, a British officer offered a soldier a drink of water from a cannonball, a story often recounted at Fort Griswold.

Nearby Landmarks

• Mystic Seaport Museum (3.5km Northeast)
• Olde Mistick Village (4.0km Northeast)
• Submarine Base New London (1.2km Southwest)
• Fisher's Island Ferry Terminal (2.0km Southeast)
• Groton Monument (0.3km West)