A recent report by UFO-tracking app Enigma reveals that thousands of sightings of Unidentified Submersible Objects (USOs) have been logged near rivers, lakes, and oceans, suggesting that unexplained phenomena are not confined to the skies. Some of these objects reportedly rise from the depths or plunge into the water without leaving a splash, defying conventional physics. The sheer volume and consistency of these reports challenge traditional explanations for UFOs. While aerial sightings have long been treated skeptically, the underwater dimension adds a new layer of complexity. If verified, USOs could represent either highly advanced technology or an entirely unknown phenomenon, raising urgent questions about national security, scientific inquiry, and humanity's understanding of the natural world. Enigma, billed as the "largest queryable historical sighting database for global UFO sightings," has recorded over 30,000 reports since its launch in late 2022. While most detail aerial phenomena, the recent report highlights more than 9,000 USO sightings within 10 miles of U.S. shorelines or major bodies of water. Of these, 500 were reported within five miles of the coast, and over 150 involve objects hovering above or entering the water, sometimes accompanied by strange lights or unexplained movements. Retired Navy Rear Admiral Tim Gallaudet said objects capable of moving seamlessly between air and water could carry "world-changing" ramifications.