Despite only being three blocks from the Atlantic Ocean, faculty, staff, and students at MDCC easily forget the twice-a-day tide in the Biscayne Bay. A Month of Tides brings a sense of the sea’s tide into a huge atrium at the core of the school. At high tide, the 60-foot-tall transparent blue tube rises to the top floor of the atrium, and slowly sinks to the floor by low tide.