What is cabin 3 dedicated to lightning thief?

In "The Lightning Thief," Cabin 3 is dedicated to Poseidon, the Greek god of the sea, earthquakes, and horses. It serves as the home for his demigod children, including Percy Jackson, the protagonist of the story. The cabin is described as having a blue theme, reflecting Poseidon's domain, and it symbolizes the connection between Percy and his divine heritage. As the son of Poseidon, Percy shares a special bond with Cabin 3 and its significance within Camp Half-Blood.