Charmian Frend is an Australian open water swimmer and coach, who along with Vlad Mravec of Vladswim , has enjoyed a 100% success rate of its aspirants and team members who attempted a crossing of the English Channel in 2012. Frend coaches swimmers Tara Diversi , James Arnold , Wayne Arthur . Stuart Johnson , Wyatt Song , Lochie Hinds , Denise Elder , Alistair Newmarch and Marty Filipowski at Balmoral Beach .