Hi, I just got back. I am sure that you will have a wonderful time. The whole place is great for kids. They even have a toddler pool and I play ground. I did not bring my little girl, but spent the whole time wishing that I had. I have never seen a better beach for kids. Harding any waves. I've been to the DR about 5 times now. I always get a little sick from the water or food or something. I would be careful and only drink bottled water (including brushing your teeth). I am sure that they will be fine. Most kids are more resilant than adults. They have a great variety of food. For lunch ou will find fish and plantains as well as pizza and hamberger. For breakfast they had eggs, bacon, fruit, ceral, bread, toast, juice.
Have fun!
Rebecca