| Heidsee | |||||
| Other Name: | Igl Lai | ||||
| Location: | Lenzerheide, Grisons | ||||
| Coords: | 46.7397°N 9.5506°W | ||||
| Lake Type: | natural, reservoir | ||||
| Basin Countries: | Switzerland | ||||
| Area: | 0.33km2 or 0.41km2 with lower basin | ||||
| Elevation: | 1484m (4,869feet) | ||||
| Frozen: | Winter (accessible December–March) | ||||
| Islands: | (Heidseeinseln) | ||||
| Pushpin Map: | Canton of Graubünden#Switzerland#Italy#Alps | ||||
| Pushpin Label Position: | bottom | ||||
| Embedded: |
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Heidsee (Romansh: Igl Lai) is a lake at Lenzerheide, Grisons, Switzerland. Its surface area is 0.41km2.
It lies at the foot of the Parpaner Rothorn.