In Greek mythology, Polybotes was one of the Giants, offspring of Gaia and Uranus, who fought Poseidon in the Gigantomachy. Apollodorus and Strabo record that Poseidon chased him through the sea to Cos and crushed him under Nisyros, a fragment of the island broken off and hurled upon him.
Adapted from Wikipedia, "Polybotes" · CC BY-SA 4.0
I.Mythology
Polybotes was one of the Gigantes born from the blood that fell when Uranus was castrated by Cronus. According to Apollodorus, during the Gigantomachy Poseidon chased Polybotes through the sea to Cos and, breaking off the piece of the island called Nisyrum (Nisyros), threw it upon him.
Strabo likewise records that Nisyros is a fragment of Cos hurled by Poseidon upon Polybotes; some say the Giant lies beneath Cos itself. In another version, after Zeus struck him Polybotes swam away; Poseidon threw a trident that missed and became the island of Nisyros or Porphyris.
Pausanias saw at Athens a statue of Poseidon on horseback hurling a spear against Polybotes. The Giant is named on sixth-century BC black-figure pots, including scenes of Poseidon carrying Nisyros on his shoulder ready to hurl it — a frequent motif in Archaic and Classical vase-painting.