New Sonar Footage Sparks Fresh Search for Loch Ness Monster

The enduring mystery of the Loch Ness Monster has gained renewed attention following a sonar sighting in 2025. Local skipper Sean McLeod recorded footage that experts are calling one of the most convincing anomalies to date. The video shows a large, moving shape beneath the surface of Loch Ness, nearly the size of McLeod’s boat. This sighting has led to an ambitious new search employing advanced underwater and aerial technology.

Researchers from the Loch Ness Centre and the group Loch Ness Exploration have initiated a thorough investigation into the waters of Loch Ness. The latest expedition combines state-of-the-art sonar scanners, hydrophones, night vision cameras, and baited underwater traps. Additionally, remotely operated vehicles capable of descending over 100 metres have been deployed, alongside drones equipped with thermal imaging and AI-powered anomaly detection tools.

Despite the excitement, experts urge caution regarding the evidence. Initial results indicated unusual underwater sounds shortly after one baited camera trap was lowered, yet no visual confirmation of a large creature has been established. McLeod, who has logged over 200 similar sonar readings in the past decade, stated that the shape he observed appeared “almost as big as the boat.” Following his recording, sonar manufacturer Raymarine reviewed the footage and suggested the anomaly could be a large fish or marine mammal, though no species currently known to inhabit Loch Ness fits that description.

Skepticism remains prevalent in the scientific community. A recent environmental DNA survey found no evidence of large reptiles or unknown fish species, with the majority of genetic material matching that of eels. Professor Tim Coulson from the University of Oxford expressed doubts, stating it is “highly improbable” that a large, undiscovered species could remain hidden in the loch for centuries.

As technology progresses, researchers face the challenge of distinguishing legitimate evidence from digital hoaxes. With the rise of AI-generated images, volunteers are now collaborating with data analysts to identify potential frauds and filter out false positives. Alternative explanations for reported sightings often include wave patterns, floating logs, or optical illusions caused by light and distance.

Loch Ness, one of Europe’s deepest freshwater bodies, stretches 23 miles and plunges to depths exceeding 200 metres. Its vast size and murky waters contribute to ongoing speculation and mystery. Should advanced imaging or DNA sampling eventually confirm the existence of an unidentified large creature, it could represent a groundbreaking zoological discovery.

For now, the results of ongoing searches indicate familiar species such as eels and pike. Until clear physical evidence emerges, the existence of the Loch Ness Monster remains unproven, leaving enthusiasts and researchers alike in suspense.