The “saltwater cowboys” are members of the Chincoteague, VA volunteer fire department. All year long they help moniter the herds of ponies on Assateague Island. Every July they round up the ponies, from the north and south herds, and run them down the beach to the corral. This was captured during the 2016 round-up/run of the north herd on the beach in Assateague national park in Virginia.