Participants who wish to enter the 2018 edition of the ehunmilak/g2haundiak goierri trail/marimurumendi marathon races can register in the website or , after the 9rd November, 2017 at 17:00. This is the only way to enter to one of the three races. A free user account registration is required in the website. The method of payment will be by credit card.

There will be a period of 72 hours to order the payment. Once this period is over, registrations will be cancelled automatically.