You can go snorkeling as many times as you want. They try to take you to a different site each time, so you'll see different things. We also signed up for the night snorkel, which was really cool. The night snorkel cost $35 a person but it was worth it.
You can go sailing. If you don't know how to sail, they will teach you.
You can go skiing or wakeboarding. All you do is walk up to the watersports hut and let them know what you want to do. They bring the ski boat right over to you. Just make sure you tell them when you're ready to turn around. I didn't know I was supposed to do that and ended up wayyyyy down the beach. :-)
You can take the shuttle to Rick's Cafe ($15 a person).
We also arranged for a taxi driver to take us to the lighthouse. We had a great driver who drove us over Mount Airy and pointed out a lot of things. It was nice to see a little more of the area.
Be sure to just spend some time floating on a mat in the water with your loved-one. It's vacation! Have fun.
Oh, there is lots of stuff to do at CSA. We usually start the day with rooms service coffee and rolls and watch the ocean from our balcony. Then it's over to the fitness center for a long workout in the fabulous gym, a quick shower in the locker room, followed by swimming laps in the lap pool and a soak in the jacuzzi. After breakfast at the Palms, we swim or float in the ocean, then maybe we'll do a morning snorkel trip. In the afternoon, we might play some bocce ball or volleyball, bar hop, float in the swim-up bar, or even stroll the beach. There are all sorts of classes you can take (mixology, basket weaving). We also have gone parasailing (extra cost). Lots of people use the (complimentary) hobie cats, kayaks, or paddle boats (the paddle boats are a workout!). Waterskiing is also complimentary! Of course, we have to squeeze some time in there for reading a good book and a nap at some point.
My favorite part of the day is watching the sunset from our balcony or the beach with a nice cold beverage.
You can also book excursions if all of this isn't exciting enough (Mayfield Falls, Appleton Rum tour).
The nightlife is not wild and crazy, but it is romantic.