Caldey Island width at its widest. It has an area of and its highest elevation is . The island lies in Carmarthen Bay on the northern side of the Bristol Channel in the county of Pembrokeshire, a little over south of Tenby on the mainland of southwest Wales. It is separated from the mainland by Caldey Sound. A ferry service from Tenby goes to Caldey Island in the spring and summer months when the weather allows. Boats depart every half hour from the harbour at high tide, while at low tide they depart from Castle Beach. Caldey Island consists of two islands
Australian south-east coast drainage division Australian south-east coast drainage division The south-east coast drainage division is the very long, narrow area of southern Australia between the Great Dividing Range and the Coral and Tasman seas, and the Bass Strait. It includes the small part of south-eastern South Australia which lies to the east of the Murray-Darling Basin, and all of coastal Victoria and coastal New South Wales. While the southern, eastern, and western boundaries are clearly defined by geography, the northern boundary is arbitrarily defined as the New South Wales - Queensland border. The distinguishing feature of the drainage basin is the Great Dividing Range