Públicos to Constanza (RD$150, 40 minutes, about 9am, 11:30am and 1:30pm) leave from diagonally opposite the Shell petrol station (at the corner of Duverge and Calle El Carmen). Publicos to La Ciénaga (RD$100, 1½ hours, about every two hours) leave from Calle Odulio Jiménez near Calle 16 de Agosto. The road is 42km long, of which the first 33km is mostly paved. (Returning can be a challenge, especially if you're coming back from an afternoon hike. Hail any truck heading towards Jarabacoa; chances are the driver will let you hop aboard.)
Guaguas provides frequent service to La Vega (RD$85, 30 minutes, every 10 to 30 minutes 6am to 6pm) leaving from the terminal.
Caribe Tours offers the only 1st-class bus service to/from Jarabacoa. It has four daily departures to Santo Domingo (RD$270, 2½ hours, 7am, 10am, 1:30pm and 4:30pm), which stop in La Vega (RD$75, 45 minutes).
The asphalt road to Constanza has made this scenic drive a breeze as far as your car’s shock absorbers are concerned; dozens of switchbacks, however, will test your driving skills. Once you hit El Río, the remaining 19km passes through a lush valley.
A cab to La Vega costs around RD$800.