In 2007, Aranburu won the Zarauz Pro Surf title and became the European champion. He later took part in the World Qualifying Series (WCS), and as he finished the 6th, he qualified for the World Championship Tour (WCT), where he competed with the best 45 surfers of the world. In 2008, Aranburu suffered knee and ankle injuries, but managed to stay alive in the WCT.