St. Maarten is great with kids. We have been taking our son every year since he was 1. I highly recommend Galion beach. No waves water is very shallow, lots of other kids. Trust me will be one of your most relaxing times on island, you will actually get to sit for more than 15 minutes. The restaurants on Simpson bay are great for kids, a lot on water with docks so the kid can be entertained by fish an boats during dinner. We have always taken our son with us to nicer restaurants but he was always good in restaurants. The other thing is he usually would fall asleep on the way there after a long day so we would drape him over two chairs and he would sleep while we ate. We usually skip orient, water can be too rough for a 3year old and I don't want to stress that the goofball is going near the water. Not a relaxing day for mr personally. That's why love Galion, he can wander and I can chill. Plus you pass the butterfly farm on the way in.