Argentina in June and July with Kids- Camps?

We are hoping to move from California to Argentina in June and July so that our kids can work on their Spanish. Are there any winter camps during this time that you can recommend for 6-7 year olds to both have fun and learn Spanish? Or any schools that do short term enrollment or classes? Or tutors? We're trying to find a way for them to learn Spanish in a way that is fun and not just sitting in a traditional language school classroom that's mostly geared to college/adult learners.  Thank you!