I have been to the cathedral and prayed at the remains of the saint, but I go to mass at the Pilgrim office (so that I can avoid the gawkers in the cathedral who won't respect the private nature of mass and insist of filming, snapping photos etc).
This site is run by Ivar at in Santiago de Compostela.
This site participates in the Amazon Affiliate program, designed to provide a means for Ivar to earn fees by linking to Amazon