Designation IUCN II – marine park Length 400 m Operator Parks Victoria | Area 10 ha Width 250 m | |
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Location Port Phillip Heads Marine National Park, Port Phillip, Victoria Elevation descends 20–32 m (66–105 ft) Website Portsea Hole at Parks Victoria | ||
Diving portsea hole victoria australia 1080p hd mp4
The Portsea Hole is a depression in the seafloor of Port Phillip near Portsea in Victoria, Australia. The undefined area of the depression, generally assessed at 10 hectares (25 acres), is one of six separate areas that comprise the Port Phillip Heads Marine National Park and is a popular site for divers.
Contents
Portsea hole
Features
The Portsea Hole is a remnant section of the drowned valley of the Yarra River, descending sharply from the 12 metres (39 ft) depth of the surrounding seabed to 32 metres (105 ft), exposing changes in the strata of the limestone sides with depth. It is characterized by diverse and abundant fish assemblages as well as a rich benthic community of marine invertebrates, encrusting algae, sponges and soft corals.
References
Portsea Hole Wikipedia(Text) CC BY-SA