From what I can gather they are together pretty much all day in the same areas (there are two large indoor rooms, one used for quiet time and one for play) and a dining area and the outside area) except for a short time when they separate the younger from the older kids during sleep time for the younger ones. It is a good idea to go and watch though they may not be happy if we haven't joined up yet. I am leaning towards a no at this stage. When I visited the first time the kids could either sit on a rug with a teacher who had ages from 6 months to 3 sitting with her. Or they could play in the sand pit. The 2nd time I went there were two teachers one with younger kids and one with older kids. It just looked funny seeing a 6 month old next to a 3 year old. What would the 3 year old get out of it? Anywhere completely unsure and really appreciate your comments