The 6th Kastraki Trail is dedicated to the memory of the teacher and benefactor Theodoros Theodoridis, who gave the town of Grevena its grove. The Health Runners of Grevena co-organise the event with the Regional Unit of Grevena and the Municipality of Grevena, under the auspices of EOSLMA-Y. Alongside the races, the Prevention Centre for Addictions and Promotion of Psychosocial Health of the Regional Unit of Grevena, ORIZONTES, holds awareness activities. Start and finish are at the Open-Air Theatre of Grevena in Theodoridis Grove. The 3.5km walking route has no appreciable elevation change and follows path and provincial road around the open-air theatre in Theodoridis Grove. This walk is explicitly non-competitive: adults taking part in the walking route are NOT awarded winners' prizes. They receive only the embossed commemorative finisher medal and a commemorative race gift. Open to everyone aged 12 and over, walking at their own pace; participants must have been recently examined by a doctor and be physically fit, and minors take part under the responsibility of their parents or guardians. Limited to 120 runners and walkers on a first-come, first-served basis, a limit shared with the 3.5km Popular Health Run. Sponsor gifts are distributed to competitors by raffle and the award ceremonies for the competitive races take place at the KASTRAKI open-air theatre after the races finish. Bib and race material pickup is at the Secretariat in the start area from 08:15 to 09:45; bring the confirmation email showing your bib number together with your ID card, passport or driving licence. Collection by a third party requires a photocopy of the participant's ID and a copy of the email, otherwise the bib is not released. Clothing and equipment can be handed in at the Secretariat, but no valuables, phones or items of value. The participation package includes the embossed commemorative finisher medal, a commemorative athlete gift, the bib, electronic timing with an individual CHIP, on-course feeding, post-race recovery products, medical services and free photographic coverage of the whole event. Athlete passage checkpoints operate on the route and anyone without an electronic reading at both start and finish is disqualified. After the official cut-off, participants who have not finished must leave the course or continue at their own risk. A sweeper runner follows the field, the Grevena Rescue Team is stationed at various points and a doctor provides first aid; medical cover is provided by the event Health Service with the Chief Doctor, emergency services and first-aid staff. Participants take part at their own absolute personal responsibility, having had the necessary medical and cardiological checks, and no medical certificates will be requested. Bibs must be pinned at all four corners and be fully visible, and are personal and non-transferable without prior approval of the Organising Committee. After finishing, keep walking towards the exit to collect your medal and bottled water. Objections about a competitor's compliance that affects the placing of the first six men or women may be submitted during the race and up to 30 minutes after the announcement of the first six winners. Registration cancellation requests are not accepted and entry fees are not refunded; if the 6th Kastraki Trail itself is cancelled, entrants are refunded, and the races may be cancelled or postponed due to an emergency or by decision of the organisers. Group entries for teams of 7 or more are submitted with the EXCEL form at https://bit.ly/kastrakigroup26, emailed to dromeisgrevenon@gmail.com with proof of deposit to Piraeus Bank IBAN GR4501722400005240075428251 and the team name as the comment; bank charges are paid by the depositor, and the 7-person threshold counts across all races combined. Note that the group rate for the walk is the same as the individual rate. KTEL Grevena offers participants a 25% travel discount on 10, 11 and 12 October. Information: dromeisgrevenon@gmail.com, D. Papanikos 6936897758 for registration matters, D. Trapezas 6972890371, D. Zapsalis 6974079181, G. Dimitriadis 6973355035, P. Lallos 6937367979, N. Baldoumis 6977339008, V. Stamos 6981297687. Facebook https://www.facebook.com/DromeisYgeiasGrevenon and Instagram dromeis_ygeias_grevenon.