What to do in St. Croix with a 2.5 year old?

[BethV114]

We'll be in St. Croix at the end of January 2012 as a port on our Southern Caribbean cruise. This itinerary has several new ports for us, including St. Croix. On top of that, we'll be traveling with our DD, who will be just under 2 1/2 years old. Does anyone have any suggestions of what to do with her in St. Croix? It doesn't need to be a full day thing. We don't mind spending only about half the day in port and then returning to the ship for the afternoon to make use of the pool, etc. while it's less busy.

I saw some information on Sand Castle Beach where it looks like we can reserve beach chairs and umbrellas in advance. It also appears as though they have a restaurant and a pool there. Has anyone done this with a younger child? If so, how did it work out? Any alternative suggestions of activities or other beaches we should try, instead?

Thanks so much for the help!!