At Campsite Amarin in Rovinj (Istria) camping costs as little as €16,- per night during low season with CampingCard ACSI. At one of the 650 touring pitches you will get a discounted rate during the period . 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).
Amarin campsite is located just north of Rovinj and has lovely views of the town. It is a real family campsite with a swimming pool. There are plenty of sports activities and children's playgrounds. Toilet facilities are mostly outdated but clean.