I'm a lone female going planning crazy for my upcoming trip to Spain in March (covering the major cities - Madrid, Barcelona, Cordoba, etc.) I have read that tourist offices keep updated lists of open hostel rooms and that deals can be found if you just book when you arrive.
As I mentioned however, I have been super planning and have already booked hostels for each city. (It may be important to mention that I prefer private single rooms averaging about 20-30 euro a night.)
My question is, I'm sure there are benefits to booking at the time of arrival but is this too risky? Is it cheaper? It's certainly more adventurous!