Shopping in the old town is also a good idea for spending a day. There is no need to worry about getting lost and many international and local crafts can be found all over the area. There is a large bookstore that carries English-language books and newspapers which is a good place to start off the shopping day.
If you would like to spend a day at the beach, the Isla De Arousa is an excellant island to spend it at. It is serviced by frequent ferry service from Vilanova, and has many beautiful beaches and also excellant sportfishing. It is the largest Island in Galicia and is also the closest.
Getting around Spain is fairly easy, the most expensive, but easiest way is to rent a autoemobile, there is a good network of roads going to every part of Spain starting at the Plaza Del Sol in the center of Madrid, which is also the geographic center of Spain. If you wish to save money the bus is also another good alternative, Spain has a very good network of public bus systems that go almost anywhere you would want to go. The train is also a very good way to travel. Europe is famous for its train system and A person can get anywhere he or she wants to go by train. Spains trains are fairly comfortable and travel at reasonably fast speeds so you can get where you want to get quickly.