Getting away from traffic on quieter roads and car-free trails can lead to spectacular places. Gravel riding tends to take you further off the beaten track than road cycling and usually covers greater distances than most mountain bike rides. All BILOgravel routes start at the watchtower above the Veliko Trojstvo, which is the start and finish of the BILOgravel Challenge Marathon. Follow the BILOgravel markings on all routes! The junctions of shorter routes are additionally numbered 25, 40 and 60. The routes can be joined anywhere because all BIOgravel routes are circular. Alternative routes are also marked, which increases the possibilities of driving BILOgravel routes to more than 400 km. Alternative directions are marked with ALT.