Malibu Life2012 Nautica Malibu TriathlonBy 13StarsManager - September 4, 20130276FacebookTwitterPinterestWhatsApp Maribel Mertner and Dawn Mitchem (friends for 25 years) shared a hug last year before the 2012 Nautica Malibu Triathlon, which raised $1.17 million for pediatric research. This year’s event is this weekend.