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GR53 in the Northern Vosges: diversion south of Obersteinbach, between the wash house and the Gabelfels, announced for six months from August 2026. Follow the signs.
The Club Vosgien considers this section very dangerous and diverted it from 21 August 2026, for an announced period of six months. The Club Vosgien publishes the diversion map.
Read more Source: Club vosgien : perturbations dans le secteur d'Obersteinbach (21/08/2026)
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Cathar Way: waymarked diversion at Villesèque-des-Corbières (stage one) until December 2026, following the August 2025 wildfire.
The path reopened on 13 May 2026 after the wildfire that affected the first stage. Follow the diversion waymarks and check Aude Tourisme before setting off.
Read more Source: Aude Tourisme : préparer sa randonnée sur le sentier cathare
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GR9 in the Jura: diversion around a rockfall near Lac d'Antre. Follow the temporary waymarks and the Jura Tourisme map.
Read more Source: Jura Tourisme : GR9 de Saint-Amour à Mijoux
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GR1 in the Fontainebleau forest: the burnt Trois-Pignons areas are closed by prefectoral order since the summer 2026 fires. Avoid the closed sectors.
The forest reopened on 22 August 2026, but the burnt areas and a buffer zone remain closed, with no reopening date announced. The Friends of the Fontainebleau Forest report a modified GR1 route between Franchard and Le Vaudoué: check the ONF map of accessible sectors before setting off and follow the signs on site.
Read more Source: ONF : feux de forêt à Fontainebleau, faisons le point
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GR655, western branch via Chartres: the Croc-Marbot section between Châteaudun and Marboué is closed. Follow the diversion published by the Eure-et-Loir hiking committee.
The route shown on this site follows the eastern branch via Orléans and is not affected. No end date has been announced; the diversion map is on the alerts page of the FFRandonnée Eure-et-Loir committee.
Read more Source: FFRandonnée Eure-et-Loir : alertes sentiers
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GR4 in Lozère: diversion south of Lac de Naussac, from the waterfall to Palhères, as the old path is closed by municipal order. Follow the diversion.
The path was closed after severe damage, for an indefinite period. The FFRandonnée Lozère committee publishes the diversion on its alerts page.
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GR6 on the Causse Méjean: about 1 km closed below the Croix de la Croisette, on the descent to Meyrueis. Diversion via Pauparelle and the Tour du Causse Méjean GRP.
A retaining wall collapsed: the path is closed to all traffic by a Meyrueis municipal order until it is repaired, with no date announced. The FFRandonnée Lozère committee describes the diversion on its alerts page.
No current alerts. Still check the weather and the official sources below before you set off.
Check before you go
The official sources we check every day:
- Weather and warnings: Météo-France : vigilance, Météo-France : bulletins montagne
- Wildfire risk and access to the massifs: Bouches-du-Rhône : accès aux massifs forestiers (MyProvence), Préfecture du Var : accès aux massifs en été
- Trail status and diversions: FFRandonnée : MonGR (infos itinéraires), Parcs nationaux de France
- Transport: SNCF Connect : info trafic
- Rescue and safety: Numéros d'urgence (112, 15, 18…) : Service public
This information is checked once a day and can change from one hour to the next. On the ground, follow the day’s official bulletins and the instructions posted.