Caribe go to Samana and then its 20 mins by guagua over the hill
http://caribetours.com.do/index.php/viajes/get_travel and there are also local buses which go directly to Las Terrenas
The buses of the local transportation (transporte Las Terrenas) are sometime congested, but the positive point is they arrive directly in the center of the village of Las Terrenas. The departure is from the center of Santo Domingo (Barahona street, ask for ?parqueo de PLAZA LAMA, close to DUARTE avenue). As the big Caribe Tour buses, they make a stop close to the airport, at the entrance of the ?Samana Toll Road?.
Departure (center of town) are @ 8:30AM ? 9:30AM ? 11:00 ? 1:30pm and 3:00pm
Departure (toll road stop) are @ 9:00AM ? 10:00AM ? 11:30 ? 2:00pm and 3:30pm
Matilda