As long as you don't flash expensive items[1] and work on having a good relationship with your fellow travelers I'd assume you'll be fine. I just did the 12 day

As long as you don't flash expensive items[1] and work on having a good relationship with your fellow travelers I'd assume you'll be fine. I just did the 12 day trip up the Amazon from the Atlantic coast to Colombia in cattle class (i.e. the whole deck is one giant space for hanging up to 400 hammocks): Nothing got stolen, friends were made even though we did not speak a common language and by the time we got off the boat (12h earlier than scheduled, at midnight, in heavy rain) people who were strangers to each other just a few days ago created ride shares to hotels and poor families were invited to crash on couches or floors in hotel rooms the more affluent had booked. [1] If you have to, like your camera, just keep it with you all the time.