"My hat is there."
Translation:Mi sombrero está ahí.
"Exception: The location of an event or party is described using SER. Not ESTAR! La fiesta es en mi casa. (The party is at my house.)" http://www.spanishdict.com/answers/100040/ser-and-estar#.UgeTNKBIqYI And unlike Brazilian Portuguese, in Spanish "ser" is never used for the location of stationary things.