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A Seafood Tradition in Madison, Connecticut

The Clam Castle restaurant started out as a roadside clam shack Madison CT in Madison, Connecticut, in the 1960s. It was a convenient place to stop and get fresh seafood, good food, and a welcoming atmosphere at the beach.

Nowadays, it still thrives among the best restaurants in Madison, CT, and it remains a seasonal seafood restaurant in Madison, CT, offering high-quality food World’s Largest Seafood Rolls, as well as the viral and famous 2ft 2lb Lobzilla.

We have been committed to providing the essentials for more than 6 decades: fresh seafood, excellent customer service, and an environment that keeps our clients coming back year after year. As part of the legacy of Clam Castle Madison CT, we continue to serve guests with consistency and care.

"A basic clam shack menu done right — the way it's been for over 60 years."
Donahue's Clam Castle exterior
Est. 1960s

Part of Madison’s Dining Culture

Families, generation after generation, have regarded Clam Castle, a family restaurant in Madison, as a must-see during the summertime. Situated adjacent to Hammonasset Beach State Park, Clam Castle still stands out among the list of famous Connecticut seafood restaurant destinations.

With a reputation as one of the most highly rated seafood restaurants in Madison, CT, our menu offers nothing but dishes that make up the authentic New England seafood dining experience.

Lobster rolls and whole belly clams can be seen in our menu list. As the Home of the World’s Largest Seafood Rolls, our menu also includes the biggest lobster roll - 4ft 4lb Clamzilla and the massive 2 ft with 2 lb lobster roll (Lob-zilla), making us a must-visit for those searching for the biggest lobster roll Connecticut. These are exactly what customers expect when seeking the best seafood in Madison or top-rated Madison, CT restaurants.

The Donahue's Way

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Fresh & Local Seafood

Our commitment is to use only high-quality local ingredients to deliver fresh seafood Madison CT that consistently exceeds expectations.

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Customer-Oriented Services

We have developed our business by welcoming families and visitors looking for a memorable dining experience at restaurants near Madison CT.

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Seasonal Business

Operating seasonally allows us to focus on quality and deliver the best experience as a trusted seafood restaurant Madison CT during the peak summer months.

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Freshly Prepared Every Day

Everything we make is freshly prepared, which is one of the reasons we have been rated as the best seafood place in Madison.

Experience One of the Best Seafood Restaurants in Madison, CT

We are open during the spring and summer months at: 1324 Boston Post Road, Madison, CT