For the most part, we just hung out by the pool and enjoyed some quiet, relaxing time. It was so nice. But we also took a sunset cruise one night (we went with Pelican Tours, which I wouldn't recommend...It looked like Red Sail was a step above) and took a beginner's scuba course and did a short dive. We used JADS for that and although I liked the fact that it was just my husband and me with an instructor, making it VERY safe, I didn't like the dive site. I was hoping that they would take us out on a boat, but we just walked in off the shore.
We also did some shopping one afternoon downtown and ate out at a restaurant called Papiamento, which was incredibly beautiful and romantic and delicious.