Turner is considered to be one of the greatest wingers in Bishops (Diocesan College) rugby to date. He was part of the 2006 Bishops rugby team, rated as one of the finest in the school's history. In the 2006 season, Turner scored 25 tries, averaging more than one try a match. He was, however, overlooked for selection when the Western Province Craven Week side was selected, a decision considered by many to be a travesty.
Turner while on holiday at home in South Africa was released to play for the Souther Kings versus The British and Irish Lions. He was also a member of the Springbok Under-20 team and Western Province under-19 team. Controversially he was considered second string in the Western Province under-21 squad, despite beating out the favoured player for the University of Cape Town side.
His preparatory school was Western Province Preparatory School in Newlands, Cape Town, he then attended Bishops Diocesan College in Cape Town where he played for their first XV rugby team.