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
South West Solitary Island m thick. The strike of the beds is between 350° and 60° with dipping at 41° to 67°. There is an anticline with syncline on the southwest of the island. Tectonically it is part of the Coffs Harbour Block which in turn is part of the New England Orogen. South West Solitary Island South West Solitary Island or Groper Island is an island found off the New South Wales North coast and inside the continental shelf. It is located 18 km north-east of Coffs Harbour and about 18 km south-south-east of Woolgoolga. The island is part of the Solitary Islands