Kids swim shirt

Where could I find a long sleeve kids swim shirt? We are at the Riu now and have a child who is sunburned! Any help would be greatly appreciated!

Your best best would be to grab a taxi to Time Square shopping mall...they have a few stores you can check out.

They don't have any in the gift/retail shop?

I was able to get one at Beaches T&C. It's a great souvenir.