Hey ladies, I got married at Dreams Punta Cana Sept 16 2011.
We did the Saona Island excursion, the beach is beautiful. It starts with Hotel pick up at about 8am then you take a small tour to the beach destination pick. the driver gives little information about the area. then you jump on a catamaran to saona island. when you get to the island they provide lunch and hang out at the island for about 3 hours. after this you jump on a speed boat which takes you at a point in the ocean where you can swim with starfishes. the area is extremely shallow but it is i the middle of the ocean. It's about 30-45mins around that area and they do provide complimentry drinks. The price was $79 if booked with sunwing rep at the hotel. the other companies were charging aver $100 for the same excursion.
We also did the buggy excursion the more the better cause then they will reduce the price, it cost us $40 per person. This one is for the adventurous ones cause it's muddy wet and dirty, but I loved every moment of it until I got back to the Hotel and realised my hair had loads of sand in it and my wedding was a day away...LOL
I would do them both over again, except for saona island walk with more sun block. I was roasted!
Hope this info helps