You can't talk about swimming in the ocean without the mention of Sharks - whilst there has never been an attack during a Rotto Swim, it's absolutely a worry for some. Shaun opens up about his concerns over our ocean friends.

Follow Perth radio star and Ex-Dockers captain Shaun McManus as he dives headfirst into his most challenging athletic trial to date, a 19.7km open water solo swim to Rottnest Island. Tune in for the triumphs, intense training, and setbacks. This is Shaun McManus’ Road To Rotto.