Snorkeling instructor Katie Maggs had an unusual underwater encounter while swimming in Cornwall, United Kingdom. During the outing, a small white and translucent creature drifted past her face, immediately standing out because of its delicate, blob-like appearance.
What made the sighting especially memorable was the way the animal seemed to shift into rainbow colors before her eyes. The pale marine creature reportedly took on a glowing, iridescent look, turning a brief snorkeling moment into something Maggs described as almost alien.
The encounter shows how surprising coastal marine life can be, even during an ordinary swim. In waters around Cornwall, small sea animals can appear suddenly and vanish just as quickly, leaving snorkelers with only a few seconds to process what they have seen.
Based on the available details, the creature was notable for its translucent body and rainbow-like glow rather than any confirmed identification. For Maggs, the moment was a striking reminder that some of the ocean’s most fascinating sights are also the hardest to explain at first glance.
