Bicycles are common for Ticos traveling from their villages to the nearest town. This photo shows a section of the dirt road just outside of Villareal. It connects Villareal with the main town in the area, which is Santa Cruz. Villareal is the nearest local town to Tamarindo, as Tamarindo is an international resort community.
You can see that cars kick up a fair amount of dust on the unpaved back roads of Costa Rica. In some towns they spread on dirt roads a sealer made from a molasses-type of by-product of sugar cane mills. It keeps down the dust. They do that sometimes on unpaved roads in Tamarindo. I like it, as it smells sweet when you walk around.
We have photos of the Himalayan kingdom of Bhutan this week on our Viva la Voyage travel photo site.