The Helmbachweiher is a lake in the central Palatine Forest in the German state of Rhineland-Palatinate. It lies near the Helmbach stream about two kilometres from its confluence with the Speyerbach on the forest estates of the municipalities of Elmstein, Kirrweiler and Venningen.
| Helmbachweiher | |
|---|---|
 Helmbachweiher | |
  Helmbachweiher | |
| Location | Rhineland-Palatinate, Germany |
| Coordinates | 49°20′2″N 7°58′53″E / 49.33389°N 7.98139°E |
| Type | lake |
| Surface area | 0.6 hectares (1.5 acres) |
| Max. depth | 2 metres (6 ft 7 in) |
The lake is comparable to the woogs of the Middle Ages and was created in 1970 by the impoundment of the Kohlbach, a right tributary of the Helmbach. It has an area of 0.6 hectares (1.5 acres) and is up to 2 metres (6 ft 7 in) deep. Its primary role is as a Kneipp bathing pool. In the immediate vicinity of the lake is a forester's lodge, the Forsthaus Helmbach, an adventure playground, a barbecue area and an educational garten.