Nocturnes d'Alauna is an annual event in Valognes, Manche, organized by Les Randos d'Alauna. It features short trail races of 7 km and 11 km, alongside longer 27 km and 37 km walking routes and mountain-bike circuits.
The event is organized by volunteers from Les Randos d'Alauna. Routes are initially identified on IGN maps, verified for practicality, submitted to the prefecture for approval, and then inspected to clear any obstacles. The association directs its events to support children who are ill or have disabilities; current fundraising is for Maël, a three-year-old born without a left ear, who requires reconstructive surgery in the United States.