Caño Cristales has been called the river of five colors and the liquid rainbow. It’s also been called the most beautiful river in the world. We’ve seen a lot of rivers on our Trans-Americas Journey and we’re inclined to agree. It’s not easy to reach and, until the mid 2000s, wasn’t even open to tourism because of FARC activity. Those who do make it to the small town of La Macarena, the gateway for Caño Cristales, between June and November are rewarded with a natural spectacle not seen anywhere else in the world as rare