When your home floats on the river you tend to build a close community. It may take close to an hour with a motorboat to make it to a village so your collection of buildings evolves and quickly becomes its own village. Soon there is less and less need to leave your people; those of this particular community are ethnic Vietnamese. They fish and raise crocodiles in floating enclosures for their valuable hides. Most subsist off what they can catch and collect selling what little extra they have in order to purchase the things they cannot make for themselves. I suspect that this gentleman's attire would suggest that he is, in this community, a wealthy man.
Canon 1D X, Canon 70-200/f2.8L IS Mark II
200mm, f4, 1/400 sec @ 400 ISO