Dalhalla is the reason many visitors know Rättvik at all. The arena sits in a former limestone quarry north of town, with steep rock walls, water at the quarry floor, and a stage that turns summer concerts into something close to theatre even before the music starts.
The acoustics are the point. The quarry's shape gives the venue a natural resonance that has made it one of Sweden's most distinctive outdoor stages. Check the programme before you build a trip around it, since Dalhalla is event-led rather than a place you simply wander into every day.