is low, long, and solid, with the windows facing the sea. The outer walls are rough gray stone with pieces of seashell and coral and look like the bottom of the ocean floor. On the inside it has six empty bunk beds and the walls glowed like abalone. Poseidon added a fountain for his sons. It is made out of gray sea rock, has a fish that sprouts the water from its mouth, and has coral to decorate it. The bottom is filled with gold drachma for Iris messages. Also Tyson added a few bronze Hippocampi to the roof as decorations.