Jack Cox is the owner and head instructor of Northern Beaches Jiu Jitsu in Sydney, Australia.
Jack is a brown belt in jiu jitsu and an affiliate of the Pedro Sauer Association.
@northernbeachesjiujitsu
@coachjackcbjj
www.northernbeachesjiujitsu.com.au
17/1-5 Thew Pde, Cromer, Sydney, New South Wales
