France Plans to Limit Visits to Mont Blanc Lakes to 1,000 People a Day from Summer 2027

Proposed advance booking system for Lac Blanc and the Chéserys Lakes near Chamonix, with a three-year trial following peak visitor numbers of 4,000 a day.

Local authorities in Chamonix, in the French Alps, are preparing to introduce a new visitor management system for Lac Blanc and the Chéserys Lakes within the Aiguilles Rouges Nature Reserve.

The proposed measures include mandatory advance reservations and daily visitor limits beginning in summer 2027, aimed at reducing overcrowding and protecting the sensitive mountain environment.

Under the proposed plan, daily access would be limited to 600 visitors in June and between 900 and 1,000 visitors during July, August and September, following summer peaks of approximately 4,000 visitors on certain days.

The measures still require final regulatory approval before they can take effect.

Located at an altitude of approximately 2,350 metres, Lac Blanc is renowned for its panoramic views of the Mont Blanc massif and surrounding glaciers, making it a popular destination for hikers and photographers.

The area welcomed around 130,000 visitors in 2025, with visitor numbers having doubled compared with 2020.

Growing visitor traffic has increased pressure on hiking trails, vegetation and wildlife habitats, while also affecting the quality of the visitor experience during peak periods.

Chamonix authorities plan to introduce an online reservation system covering the period from June to September, with booking checks at access points and potential fines for visitors who breach the rules once the measures are formally approved.

The proposed system would be tested over three years under the supervision of the authorities responsible for managing the nature reserve.

The initiative has an estimated budget of €590,000 for the 2027–2029 period.

The project draws inspiration from visitor management measures introduced at Calanques National Park near Marseille, where advance reservations are used to reduce pressure on environmentally sensitive sites.

Meanwhile, French municipalities along the famous Tour du Mont Blanc hiking route are developing a framework to regulate hiking and camping activities.

The route attracts approximately 90,000 hikers annually.

Proposed measures include strengthening advance accommodation booking requirements, restricting unauthorised camping, establishing designated overnight areas and deploying monitoring teams to help protect the natural environment.

This initiative is separate from the proposed visitor quota system for Lac Blanc.

If approved, the new regulations would require visitors planning to explore Lac Blanc and the Chéserys Lakes during the summer season to arrange their visits in advance rather than relying on unrestricted access upon arrival.

Al Rehla advises travellers planning hiking trips to Chamonix in summer 2027 to monitor official announcements before finalising their itineraries and to check entry requirements and reservation procedures once they are published.