First night out, we tied up at the side of the river. Happened to be close to a troop of Orangutans. Didn’t see them, but heard them hooting. Next day, saw a few in the trees. Went to a feeding station where around 15 showed up. They set out food in times when it’s scarce in the wild. Saw a few other kinds of monkeys on the river. One of the best experiences in my life.