If you want scuba diving, the best the island has is on our doorstep in Las Galeras, The Tower and Tibisi have been named as the best of the best for the Island by Diver Magazine's travel guide and we dive them both frequently. We also have a great wreck dive that always is teeming with fish as well as some of the most beautiful corals anyway around.
Getting here from SD is simple and cheap. Caribe Express Bus to Samana, 320 peso per person and it runs at 8 and 10 am and then 2 and 4 pm. Alight by Banco Popular, cross the road and pick up a local gua gua (great fun!) this costs 90 peso and takes around 45 minutes.
Plenty of places to stay here everything from camping to luxurious 'self catering' villas to an all inclusive hotel.