Amnesia by Sea

Amnesia triggered by sea swimming, particularly involving cold water, is typically a symptom of Transient Global Amnesia (TGA). Cold water immersion can be a trigger for TGA, leading to a sudden, temporary inability to form new memories and some retrograde amnesia, but without a loss of personal identity or consciousness. Episodes are usually short, resolving within 24 hours. While sea swimming is a known potential trigger, it's important to consult a doctor if you experience such symptoms to determine the cause and rule out other conditions