 Adélie penguins breed in the IBA | |
  Holl Island Location in Antarctica | |
| Geography | |
|---|---|
| Location | Wilkes Land, Antarctica |
| Coordinates | 66°25′S 110°25′E / 66.417°S 110.417°E |
| Archipelago | Windmill Islands |
| Length | 3.1 km (1.93 mi) |
| Highest elevation | 90 m (300 ft) |
| Administration | |
| Administered under the Antarctic Treaty System | |
| Demographics | |
| Population | Uninhabited |
Holl Island is a rocky, triangular-shaped Antarctic island, 3.1 km (1.7 nmi) long, marking the south-western end of the Windmill Islands.