Thousands participated in the annual SantaCon tradition of drinking and dressing up in Christmas-inspired costumes for a day-long pub crawl in New York and other cities around the world like London. The article shares photos from SantaCon events in New York and London showing participants in costumes drinking and partying in public areas and bars. It also notes that the NYPD will heavily patrol the New York event this year due to past reports of public intoxication and issues.