Beyond the stars on Instagram: "How Navy Seals see underwater without gear #navy #army Ever wondered how Navy SEALs see clearly underwater without goggles? Here’s the genius trick. By placing their hands firmly over their forehead and blowing air out through the nose, they trap a small pocket of air between their hands and face—creating an underwater “air window.” This temporary air chamber allows them to open their eyes and see clearly beneath the surface, even in murky or dangerous conditions.