Spend a day along Pensacola Bay with kids, and you might hear giggles followed by, “Look! I found a sea turd!” These odd, dark orbs—affectionately nicknamed by kids—are actually mud balls, formed naturally by underwater clay sediments. As chunks break off from the bay floor due to waves or passing feet, they roll and smooth in the current, like sea glass, eventually becoming round, pliable spheres. Often harmless and odorless, these clumps are rich in organic matter, giving them a dark green or black color. While sometimes mistaken for waste or pollutants, they’re usually just nature’s version of a stress ball. Found near sandy banks and marshes, they’ve become a quirky rite of passage for coastal kids—odd keepsakes that spark curiosity about tides, geology, and the sea. If one smells off or feels gummy, toss it. Otherwise, treasure it. Whether it’s a sand dollar or a mud ball, these little finds create lasting beach memories, turning simple discoveries into family stories and playful laughter that echo through generations along the Gulf Coast.
