Robert wants to tell us not only about nature and its secrets but also about the ability of the human being to recognize what happens around us. We see only the nice side if we just read and do not analyze.
That is how he forces her into deciding between him and the baby. There is no escape from this dilema. The train that was supposed to arrive did not come yet and it does not look like it will come.
On the way back I visited a private beach resort. I just wanted to see whether I could get in and it was not a problem at all. The resort belonged to some club on the main land near Cancun. | 
