Yes, interesting to still see barges towed like this instead of pushed, and sometimes with tiny ancient tugs. It is quite surprising there are no collisions. I assume they are all going out to (or coming back from in this case) the Koh Sichang anchorage, usually with rice or tapioca. I once took a trip to Koh Sichang, which was very interesting and not at all touristy, on a little wooden ferry from the pier at Sriracha, home of the much mispronounced hot sauce!