Mountain running race on the lower slopes of Mount Olympus, held annually on the second Sunday of December, the same day as the Winter Enipeas, organised by Olympus Marathon in cooperation with the Municipality of Dion-Olympos, the Regional Unit of Pieria and the Region of Central Macedonia. Olympia Monopatia was created by Olympus Marathon as an awareness campaign for the rare endemic plants of Olympus: more than 1,700 plant species have been recorded on the mountain (about 25% of the Greek flora), 187 of them rare, and 23-25 endemic species found nowhere else in the world (Viola, Campanula, Lilium / red lily, Achillea, Centaurea and others); each edition is dedicated to and named after one honoured endemic plant. Start and finish at the small theatre of Litochoro Municipal Park. Moderate-difficulty course with relatively gentle gradients on all types of terrain (trail, dirt road, asphalt). One aid station at Kopana (km 5, 550 m), which is also a checkpoint; soft drink, water and fruit at the finish. Open to men and women aged 15 and over (parental consent required for ages 15-18); no qualification criteria. Registration opens Thursday 17/09/2026. The entry form asks for an ITRA profile link (if any) and a short athletic CV; if block starts are used, seeding is by ITRA score only. Individual entries only, online with credit/debit card. Fee includes BIB, first aid, aid station on course and at the finish, athlete pack, organiser gift, finisher medal and private accident insurance. No medical certificate required. Mandatory equipment: at least 0.5 L water reserve (no cups at the aid station), visible BIB and shoes suitable for rocky Olympus terrain; beanie, windproof jacket and gloves recommended. Poles are NOT allowed. Semi-autonomy applies. No pacers (20-minute penalty); family may accompany runners only in the last 100 m. Course marked with coloured tape, temporary paint (in the village and on asphalt only) and small signs with the race logo; kilometres are not marked. The race takes place inside Olympus National Park (UNESCO Biosphere Reserve): littering means disqualification. Finish bag for a change of clothes handed in at the secretariat. BIB pickup at the EXPO area, Litochoro Municipal Park, with ID or passport (secretariat hours to be announced). Provisional results within 24 hours, ranking by gun time; protests within 24 hours. No age categories: cups to the top 3 men and top 3 women overall and medals to all finishers within the time limit. Awards ceremony at 14:30 at Litochoro park (finish area). Cancellation by email: €10 refund if cancelled before 31/10/2026, no refund after 15/11/2026; no BIB transfers, deferrals or race switches. Safety by the Samaritan Volunteer Rescuers of Katerini on course, ambulance and doctor at the finish. Contact: info@olympus-marathon.com.