Our family has always visited PC Beach sometime in the first 2 weeks of May.. Great weather, discount rates at most of the motels and no huge crowds. We did run into two different events a couple of years back. The triathalon one weekend (which blocks off traffic on Thomas drive part of one day) and fills all of the restaurants for the weekend. The other was the motorcycle rally. To tell the truth we were a bit nervous about this one. But we were very much impressed with the lack of impact this event had on the town. The event was very respectful and not at all "out of control" Our young daughter LOVED the Motorcycle parade on Beach front road.