Pope's Eye

Pope's Eye
Pope's Eye, located off the coast of Victoria, Australia
Location	Port Phillip Heads Marine National Park, Port Phillip, Victoria
Coordinates	38°16′37″S 144°41′56″E / 38.277°S 144.699°E / -38.277; 144.699Coordinates: 38°16′37″S 144°41′56″E / 38.277°S 144.699°E / -38.277; 144.699
Elevation	descends 1.5–10 m (4 ft 11 in–32 ft 10 in)
Area	4 hectares (9.9 acres)
Geology	Man–made bluestone boulders
Operator	Parks Victoria
Designation	IUCN II – marine reserve
Website	Pope's Eye at Parks Victoria

The Pope's Eye is the uncompleted foundation for an island fort intended to defend the entrance to Port Phillip in the state of Victoria, Australia. The undefined area of the fort, generally assessed at 4 hectares (9.9 acres), is one of six separate areas that comprise the Port Phillip Heads Marine National Park and is a popular site for divers.

The fort has been protected as a marine reserve since 1979 and is now part of the Port Phillip Heads Marine National Park. It is located about 7 kilometres (4.3 mi) inside Port Phillip Heads, 3 kilometres (1.9 mi) east of Queenscliff, 5 kilometres (3.1 mi) north of Portsea, and is less than 1 kilometre (0.62 mi) south-west of the former Chinaman's Hat. It is named after a naval midshipman and has no religious connotations.

Construction of Pope’s Eye began in the 1880s, under the supervision of Sir William Jervois, by dumping bluestone boulders on a submerged 12-metre (39 ft) deep sandbank until they formed a horse-shoe shaped artificial reef, open to the north-east, just above high-water level. Construction ceased before completion as a fort because improvements in naval gunnery enabled the entrance to Port Phillip (The Rip) and the associated shipping channel to be protected by guns at the nearby Swan Island fort, as well as at Fort Queenscliff and Fort Nepean, making Pope’s Eye redundant for military purposes. The reef now hosts a navigation beacon.

The inside of the 'eye' is only about 2 metres (6 ft 7 in) deep and is accessible to small boats as a sheltered anchorage. It is protected from strong currents and the whole structure is popular with snorkellers and scuba-divers.