Is Swallows Day in SJC more than just a parade? Do they shut down the streets all day for visitors?
The Fiesta de las Golondrinas is a several day event culminating in the Parade and Mercado on Sat. Mar. 22, 2014.
The only major street closings are Ortega Highway a bit for the parade and Camino Capistrano. The Mercado, that runs 8-5PM is in HTC Park off El Camino Real.
If I was coming from Anaheim, I'd use Metrolink.