In the event you go to La Romana (Dominican Republic), then take a look at this tour.

http://www.tripadvisor.com/ShowUserReviews-g663484-d1554333-r143722945-Reviews-SeavisTours-Bayahibe_La_Altagracia_Province_Dominican_Republic.html
In the event you go to La Romana (Dominican Republic), then take a look at this tour.
We did the Saona trip with Seavis Bayahibe in November. The trip ended up to be the greatest day of our vacations. We reserved on the internet and we got the confirmation with information virtually immediately. We joined the transport from Punta Cana, set up by Seavis. After 90 minutes we arrived in Bayahibe, the taxi drive was engaging, observing the landscapes. On arrival there's a cup of coffee and after payment we received a briefing of what we were going to see and do on that day.

Our tour guide Ingrid knew her history, it had been very worthwhile. The speedboat was exciting, we observed the whole shoreline of the National Park and Saona is much like the supreme Caribbean fantasy. As mentioned there were some big swells, however I was seated in the rear of the speed boat therefore I did not have to be concerned too much. We got plenty of tropical fish with the snorkeling in Catuano. You can obtain a excellent private shoot from the photographers.

Late in the afternoon we arrived at the sand bank with the starfish once more, the staff spotted some starfish and it made a fantastic photo opportunity. All of us appreciated the vistas and swam in the hip deep waters having a rum punch in hand. To summarize: it turned out a fantastic day for a fantastic price. Once you reserve direct you will receive a much better tour cheaper. Recommended.