As in the other towns on the North Coast, tour operators offer numerous excursions to surrounding sites and nearby adventure activities at reasonable prices. These include whale watching December to March, jeep tours, waterfalls and swimming holes, deep sea fishing, whitewater rafting, snorkeling, mountain biking, horseback riding, interesting beaches, as well as tours of Puerta Plata, Santiago, Santo Domingo and the border area of Haiti. Check with a tour operator near your hotel for available excursions. It is interesting that the range of tour options and the trips themselves are almost identical among the various tour operators.
Merlin Dive Center
Offers all of the standard diving fare, including snorkeling, beginner dives, advanced dives, etc. They are a highly professional outfit who will take you for pleasure dives or you can get qualified with them for a very reasonable price compared to the UK.