Tucked on the western slopes of the Serra de Sintra range and looking out to the sea, the Quinta do Rio de Milho appears deceptively small amid the steep hills, narrow valleys and lush vegetation surrounding it. Antonio Simas, the quinta's current owner, says "milho," the Portuguese word for corn, used to grow along a sinuous strip of land that wound its way through the property like a stream, giving the estate its name.