Wimp

The three dots in the water at 4 o'clock are indeed swimmers. 
They've swum from the steps at the Vico to beneath Neil Jordan's gaff, possibly to check his stool samples (organic Wicklow lamb and quinoa salad would be a reasonable guess) and they are headed back to the Vico. All in all 1.5km I'd say, in seven degrees water and no wet suit. 
But one of them is a wimp. He was wearing neoprene gloves and booties. His two mates must be slagging him non stop. 

Perfect morning on Costa Del Dalkey. Just perfect.