Can anyone give me more information about hiking and trekking in the Pyrenees Mountains in Spain? I'd like to know what some of the popular routes are and which towns are good starting points for people who want to do a trek through the Pyrenees Mountains. Also, is trekking a popular thing to do in Spain? What other activities in Spain are recommended for people who want to experience the beauty of the Pyrenees Mountains? If anyone has any personal experience or can recommend good blogs and websites and guides to trekking the Pyrenees in Spain then please post them here.