Seven years after Bruce Munro’s “Field of Light” first illuminated the hillsides of Paso Robles wine country, Sensorio is preparing to welcome its 1 millionth guest this fall, marking its transformation from a temporary art installation into a permanent 35-acre evening destination for immersive art, entertainment, dining and cultural programming. As the “Race to One Million Guests” gets underway, Sensorio has nearly doubled the size of its Fireflies exhibit and introduced a newly illuminated oak tree featuring seasonal projections visible from Highway 46. A new installation at Downtown City Park is scheduled to debut in November, connecting the heart of Paso Robles to Sensorio.