Lost Horizons

Lost Horizons is an unsupported ultra-distance gravel event through the province of Soria in Spain, organized by the Lost Horizons Cycling Club. The 830 km route, with around 13,000 m of climbing, must be completed self-sufficiently within six days, passing through national parks, medieval villages, pine forests and remote mountain terrain. The 2026 edition is the inaugural running on 19 July, capped at 100 riders.