From either the I-5 or the I-405 travel South on Highway 55.
Highway 55 turns into Newport Blvd when you come to the City of Costa Mesa - keep traveling South and stay In your Left Lane. You will cross on a bridge going over the Number 1 Highway named 'Pacific Coast Hwy" also called 'West Coast Hwy'.
Turn Left at the first set of lights onto 'Via Lido' and then make the second Left onto 'Via Oporto', We are in the Light Brown Building second from the corner - the office is located on the Water Front side of the building. There is either Metered Parking or a large Brick Parking Structure.