hadra trance festival is a four-day camping festival held at a lakeside site in the allier region of central france, organised by the hadra collective, which has been running psytrance events in france since the early 2000s. the festival runs across multiple stages and combines dance programming with an art gallery, workshops, and lectures as integrated parts of the event rather than sideshows.

the hadra collective is one of the longer-established names in the french psytrance scene, and the festival draws from the full spectrum of trance and psy-adjacent sounds. the lakeside setting, camping on site, and the multi-day format make it one of the anchoring outdoor events on the french psy calendar each summer.