After arriving at the airport, I decided NOT tp pay $35 US for taxi to Santo Domingo (20 miles). My research indicated outside the airport was a moto-taxi (ride on back of motorcycle) for $1 to the main highway to catch the local bus ($1) to Santo Domingo. This actually worked well after I finally convinced the moto-taxi driver I would not pay him $20 to go to Santo Domingo on his motorcycle.
After arriving at Parque Enriquilla, I used hostel's directions to walk 15 minutes to hostel. Nicest beaches are 30 minutes by local bus, not sure if I need another beach at the moment.