Marty’s photo of the day #3437: For those who have read my first book, Cool Creatures, Hot Planet: Exploring the Seven Continents, or have seen my college show, Around the World in 90 Minutes, this is the navigable end of the Batang AI River in Borneo. Here, Deb and I would get out of our longboat and embark on an unforgettable backpacking trip with members of the Iban tribe. The two of us would only be the third outsiders to ever backpack an old Iban hunting trail, now called the Red Ape Trail. Though there were times we could have died—or at least suffered serious injury—that backpacking trip became an adventure we will treasure forever.