St. Maarten with 3 year old

Our first trip to St. Maarten, coming in on Oasis. What is there to do with a 3 year old. DW would like to visit Margiot too.

Get up to Marigot first , then an ideal beach for a small child is sheltered Le Galion - on the east side of the island, making getting back to the port much easier in the afternoon.

I used to live there, going back on Oasis for the day. Also with a 3 year old. I'm renting a car, going to either the zoo or the butterfly farm, then lunch (probably a lolo or something quick ) beach, quick stop in Pburg iif there's time!