My luk krueng son has been on holiday here in Thailand with farang friends of his from university. They did a couple of boat tours in the southern islands. He said that on his boat it was all farangs and a few other Asians but no Thais. He talked with the boat crew, in Thai, about all of the tourists they are getting. Their reply was that this group was a good group but sometimes he gets a lot of Russians and Israelis. Apparently neither group is liked too well by them as they are very rude.