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
Tenby transmitting station to become an "aerial group W" site, whereas it had previously been an "aerial group B" site. Some homes in the area may have required new aerials though the post-DSO ERP of the transmitter is about 5.1 dB greater than is normal on switchover and this should have alleviated much of the problem. Tenby transmitting station The Tenby television relay station is sited to the southwest of the town of Tenby and north of Penally on the south coast of Pembrokeshire, South Wales. It was built in the 1980s as a fill-in relay for UHF analogue television covering the southwest