what happens.....From early on the saturday,boats are decorated with flowers, lanterns,and balloons St marks lagoon fills with as many as two thousand boats, their occupants eating and drinking as they wait for the traditional spectacular display of fireworks. (Arrangements) can easily be made through your hotel for an evening with dinner on a boat). At around 11.30 p.m. the display begin and the lagoon becomes on of the most atmospheric stages in the world,fireworks illuminating the spires, domes,and bell towers of the city.