Diamond Island also known locally as Cod Rock, is a low granite island with an area of 6.76 ha. Diamond Island lies roughly 200m off the central east coast of Tasmania and has a maximum elevation of 9m.
It is located just off the town of Bicheno. Depending on the tide it is connected to the mainland by a sand spit during which time it is accessible by foot. It is a nature reserve.Brothers, Nigel; Pemberton, David; Pryor, Helen; & Halley, Vanessa. (2001). Tasmania’s Offshore Islands: seabirds and other natural features. Tasmanian Museum and Art Gallery: Hobart. Fauna The island is a little penguin rookery numbering 200 breeding pairs. Species of seabird and wader have also been recorded breeding on Diamond island including the sooty oystercatcher.
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41°51'30"S 148°17'23"E