Arantzazuko Sansilbestrail

Arantzazuko Sansilbestrail held its 2025 edition on 27 December in Arantzazu, Bizkaia. The event was organised by Arginatx Mendi Taldea and was presented as a mountain trail race with a scheduled start at 16:00. The edition information was published via the RockTheSport platform, which also handled the entries. The sports programme brought together a route of 5 km and 300 m of elevation gain. The organisers communicated a general fee of 12 euros and set the closing date for entries as 26 December 2025. The proposal included the festive character typical of a Sansilbestrail, with an invitation to take part in fancy dress and later activities in the locality.