Clear skies draw families to Mount Servelongue
Roughly one hundred people gathered on Saturday, July 18, 2026, at Mount Servelongue in Saint-Geoire-en-Valdaine for a regional Stargazing Night event, according to local reporting from Le Dauphiné Libéré. Set at the highest point of the commune, the gathering drew a predominantly family-oriented crowd looking to explore the summer night sky under clear weather conditions.
Shuttles transport hikers to unobstructed vistas
The municipal initiative formed part of the town’s ongoing summer festival program. Because Mount Servelongue is widely known among local hikers for its unobstructed vistas, organizers utilized shuttle transport to move attendees safely up to the natural viewpoint for an evening focused on astronomy and celestial navigation.
Nature picnics precede celestial observation
The excursion combined outdoor recreation with educational programming. Participants enjoyed an open-air nature picnic before turning their attention upward to observe planets and constellations as darkness fell.
Bourgoin-Jallieu experts bridge folklore and astronomy
Raymond Sadin, a representative of the astronomy club within the Natural Sciences Society of Bourgoin-Jallieu, led the evening’s storytelling. Accompanied by five fellow astronomers, Sadin narrated traditional myths and legends connected to the constellations, helping attendees bridge ancient folklore with modern stargazing.

Favorable atmospheric conditions ensure smooth logistics
Municipal leaders and local astronomy club members coordinated the logistics, ensuring the event ran smoothly. Organizers credited the success of the gathering to both meticulous local planning and favorable atmospheric conditions that provided sharp visibility throughout the night.
Open-air film screening set for July 30
Following the success of the astronomical gathering, the town’s summer festival schedule continues later this month. Municipal organizers announced that the next scheduled event will be an open-air screening of the film The Lion King, set for Thursday, July 30, at 9 p.m. at the Combe du Versoud.