At Campsite Madrid Arco Iris in Villaviciosa de Odón (Madrid) camping costs as little as €20,- per night during low season with CampingCard ACSI. At one of the 142 touring pitches you will get a discounted rate during the period 07-09-2020 - 30-11-2020. At this campsite you can not only use your CampingCard ACSI for inexpensive camping, you can also use your ACSI Club ID (as an alternative ID).
A deceptively small campsite. Easy to find using the Madrid ring road. Ideal for a visit to Madrid (go to Boadilla by car, free parking, then by metro to the centre). Or go by car to Villaviciosa then take the bus. Very good restaurant.