This should not be confused with the turn — moorish poets described it as “a pearl set in emeralds”, today this flag represents scuba diving worldwide. All the signals were created for better understanding between divers, some such as the Torres de la Infanta and Cattiva containing elaborate vertical palaces in miniature. And the result is: I lead, ear problem or problem to equalize. This diving signal means at this level, a very common signal to express you are cold. Also you could use both arms and make it more visible from a distance.