Kallady Bridge & Singing Fish

The Acoustic Mystery of the Singing Fish

The Kallady Bridge, officially named the "Lady Manning Bridge" in honor of the wife of British Governor William Manning, is the setting for one of the most poetic urban legends in independent Sri Lanka. For centuries, locals have spoken of a melodic, strumming sound emanating from the lagoon waters beneath the bridge during quiet nights. Described by some as the sound of a plucked guitar string and by others as the hum of a distant mandolin, this phenomenon is attributed to "Singing Fish"—marine organisms that supposedly vibrate their voices or shells to create a collective acoustic symphony.

The 1954 Recordings: Rev. Father Lang and Moran

While skeptics dismissed the story as folklore, the mystery gained global scientific attention in 1954. Two American priests from Batticaloa's St. Michael's College National School, Rev. Father Lang and Rev. Father Moran, successfully captured the first high-quality recordings of these musical vibrations. In the 1960s, these recordings were broadcast on Radio Ceylon (now SLBC), allowing the entire nation and international listeners to hear the "Singing Fish" for the first time. Scientists suggest the sound likely originates from a specific species of shellfish or marine life interacting with the bridge's iron structure and the lagoon's currents, particularly during the calm months from April to September.

Heritage Span: From Iron to Modern Connectivity

The original bridge, completed in 1924, was a masterpiece of colonial iron-work and for decades stood as the oldest and longest iron bridge in the country. Spanning 288.35 meters across the Batticaloa lagoon, it served as the critical link between the mainland and the island-city. To accommodate modern traffic, a new, wider bridge was opened in 2013, thankfully preserving the old structure as a dedicated pedestrian and cycling promenade. Today, the old Kallady Bridge has become the city's favorite spot for evening strolls, offering a vantage point to look down into the dark, musical waters of the lagoon.

Acoustic Explorations with HBS Tours

We offer a unique "Nights of the Lagoon" experience centered around this legend:

• Oar-to-Ear Experience: Following traditional techniques, our guides take guests by boat to the specific acoustic zones. We use traditional oars held to the ear to amplify the vibrations from the water.
• Full Moon Ritual: We curate bridge walks specifically on full moon nights when the "singing" is said to be at its loudest and most spiritual.
• Legendary Narratives: Hear the stories of Father Lang's recording session and the various scientific theories that try to explain the unexplainable.