St Catherine's Island

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St Catherine's Island
St Catherine in November 2001
St Catherine in November 2001
Waters Carmarthen Bay
Geographical location 51 ° 40 ′ 14 ″  N , 4 ° 41 ′ 30 ″  W Coordinates: 51 ° 40 ′ 14 ″  N , 4 ° 41 ′ 30 ″  W
St Catherine's Island (Wales)
St Catherine's Island
length 200 m
width 60 m
surface 1 ha
Highest elevation 34  m

St Catherine's Island ( Welsh : Ynys Catrin ) is a small island near the town of Tenby in Pembrokeshire , Wales . The island can be reached on foot via a beach at low tide. A fortress was built on the island in 1869 to prevent attacks towards Pembroke Dock .

The third episode of the fourth season of the BBC series Sherlock , The Final Problem , was filmed largely on the island. The fortress subsequently served as a maximum security prison.

Individual evidence

  1. Kathryn Williams, Joshua Knapman: Revealed: Sherlock's Sherrinford is Tenby landmark St Catherine's. Retrieved February 14, 2017 .