Tag (game)
Marco Polo

An aquatic American variant of blind man's bluff, most commonly played in a swimming pool, although it may also be played while swimming in shallow natural bodies of water (typically the areas near the shores of oceans, seas, and lakes). The players may be swimming, treading water, or walking on the bottom of the pool or body of water. The person designated "it" is required to close their eyes, and shouts "Marco!" at regular intervals; the other players must shout "Polo!" in response. "It" must use sound localization to find one of the other players and tag them. The tagged player then generally becomes "it," and the process repeats. In some variants, if any of the players who are not "it" climb out of the water to ensure not being caught (depending on the variant, this may be cheating) and the player designated "it" suspects this, they are to shout "Fish out of water!" and can open their eyes briefly to confirm this. If their suspicions are correct, then the culprit must become "it" as the game starts over.
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