On this tour you will go to the tenorio volcano national park in this park youwill witnesstherare phenomena of the blue riverthe hike itself is medium tough and takes about 4 hours it takes you to thestunningly beautiful waterfall a high lookout point and the place where you can see theriver change color after the hike you will enjoylunchand have some free time to take a quick dip in the river before heading back to la fortuna