Hi Jonvg15, 
It takes about 20 minutes to drive from Dominical to Uvita and another 15 minutes driving from Uvita to Ojochal. That accounts for the highway portion anyway, which is all newly paved. Keep in mind that some hotels or vacation rentals in these towns are up dirt roads and that could add on another 15 minutes or more. Here is a post about the area if you haven’t seen it yet: The Costa Ballena: Uvita, Dominical, and Ojochal.