Tortuguero is one of the most remote national parks of Costa Rica, a pristine park where there are no cars, no traffic, no pollution at all. I was looking for taking some shots of the nature, but since I was on an island, walking was not getting me far. I took out the swimming option: river was crowded with crocodiles! So I decided to explore the area with my drone: I immediately noticed the difference in the colors of the rivers. The dark ones is coming from the jungle, the lighter from the mai