Nice! All the best to your kiddos!
We were in the Philippines for almost 5 months just recently, and it was late when we thought of just allowing them to sit-in the classes at the public school there. That may have also increase their interest in learning the language. My kids are 15, 10, and 9, and they all struggle with it. :((
Thanks! Yeah, we have found that playing with other kids or just constantly hearing the language is good for acquiring it. We live in a neighborhood with other English-speakers, so we don't get much Spanish at home. Auditing the classes would be a good idea. It's kind of what our kids are doing.