Eli Ball is training to swim the English Channel... butterfly. Yes, you read that correctly. Butterfly. He is an exceptionally accomplished butterflying ocean swimmer, having completed a plethora of marathon ocean swims, including the 20km Rottnest Island swim, along the way setting the butterfly record.

Songs in this episode - all licensed under a Creative Commons License:

• Butterfly - takashi_d

Image from Eli fan page on Facebook

I would like to acknowledge the horribly sad tragedy here in Sydney last week, with a swimmer killed in a shark attack at Malabar, a place at which I have swum many times. Sharks are an ever present thought for ocean swimmers, and they are one of the topics in today's episode, which was recorded a few weeks before the incident. My sincerest condolences are with Simon's family and friends.