Rio received conventional equestrian training in the UK through the Pony Club and British Horse Society system and competed extensively in dressage and eventing. She worked for several years with Mary Wanless but her focus changed when she witnessed a demonstration of Parelli Natural Horsemanship.
She studied intensively for several years, passing their exams to become one of the first Parelli instructors in the UK. She is the published author of 101 Horsemanship Exercises, has been a regular contributor to a national magazine and holds City and Guilds Certificate in Further Education Teaching. Her main motivation is to understand horse behaviour and use management and training methods that best meet the innate needs of these wonderful creatures.