Can you use a snorkel in the triathlon swim?

British Triathlon Federation rules do not include snorkel use, so snorkels are therefore banned by omission. The only swimming aids allowed under British Triathlon rules are goggles, a cap, a nose clip and a costume such as a wetsuit. Snorkels are specifically banned by the World Triathlon Corporation, which runs the Ironman series of races. WTC also bans fins, flotation devices and paddles.