One word of caution regarding accommodation is in order. If you are arriving in the high season, you are advised to make a reservation in advance. There have been several additions to the albergue roster in recent year but the numbers of pilgrims still exceed capacity in the high season.
The Feast day of Saint James is celebrated with a full week of music and dance, with a fireworks display in the Plaza Obradoiro on the evening of the 24th of July. The best views can be had from Obradoiro, or from Alameda park.