Malaga and the Costa del Sol has been a vacation destination for Brits and other Europeans for ages. There are whole apartment blocks all along the shore used for vacation rentals, most in the budget category and most in the 1-2 week rentals. It is also a favorite of many retirees from the colder climates who spend longer time in the area in the winter months. Those tourists certainly contribute to the economy - grocery stores, shops, transport. Day tourists have a narrower focus - tour buses, some souvenirs and some food. It is not as widespread or sustained in the economy as the contribution of the longer term tourists.