The area where the Panama Canal was built does not have very hight mountains, this allows the  north eastern trade winds to pass over the land with relative force; this winds will hit the surface of the water causing a up welling that leads to abundance of fish. Another interesting characteristic of the bay of Panama it that it has several group of island and most of them with no mammals or predators, so this are the perfect conditions for birds to nest. Today we visit one of this islands to see this nesting before we entered the Panama Canal.