The main ways of transportation are by... Plane because most of the big cities are communicated by airports like Madrid Barajas, Barcelona El Prat and Palma De Mallorca and so one of the best ways is to travel by plane. Another way of getting around is by train because there are many rails roads that are all around spain plus the are comfortable and quite cheap but the downside of that is that they aren't as fast as you would expect them to be. Also a bus is very popular because they will take you to more places that trains won't take you and they offer better schedules than trains. Car is also a very convenient way of traveling and is also recommended if you intend to visit different cities, highways and good roads connected to the center of the county. There are many other ways to travel like by foot or by bicycle or by boat but these are the most popular ways of traveling.