Avis (tel. 800/331-1212 in the U.S. and Canada, or 809/586-0214; www.avis.com), Budget (tel. 800/472-3325 in the U.S. and Canada, or 809/586-0413; www.budget.com), and Hertz (tel. 800/654-3131 in the U.S. and Canada, or 809/586-0200; www.hertz.com) all have offices at the airport.
You probably won't need to rent a car, however, if you're staying at one of the all-inclusive resorts. You might just like to get around Puerto Plata by motor scooter, although the roads are potholed. You can rent a scooter at the guest services kiosk at just about any large hotel in Puerto Plata.
Minivans are another means of transport, especially if you're traveling outside town. They leave from Puerto Plata's Central Park and will take you all the way to Sosúa. Determine the fare before getting in. Usually a shared ride between Puerto Plata and Sosúa costs RD$45 to RD$60 per person. Service is daily 6am to 9pm.
If you take a taxi, agree with the driver on the fare before your trip starts, as cabs are not metered. You'll find taxis in Central Park in Puerto Plata. At night, it's wise to rent your cab for a round-trip. If you go in the daytime by taxi to any of the other beach resorts or villages, check on reserving a vehicle for your return trip. A taxi from Puerto Plata to Sosúa will cost around RD$600 each way (for up to four occupants).
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.