To Improve the language skills of the students participating in the internship mobilities, mainly in the English language but also in other languages, such as German, a language of special interest for the students of the tourism training cycles that want to apply for a job on the Costa del Sol. Furthermore, this type of mobility involves general learning about other cultures, other ways of life, knowing the operation and organization of foreign companies, etc. Regarding teacher mobility, it should be noted that given that the Dual Vocational Training system is being implemented in Spain, it is very useful to visit educational centers that have been working with this system for years and that can transmit to teachers knowledge about their own experience and recommendations of good practices in this area.