A ruined 13th century castle near the village of Pennard on the Gower Peninsula, Swansea. The site is
free to access.
Smirkenorff flew past Pennard Castle during the end credits of
Series 5 episode 4.
He then continued over the valley of Pennard Pill, a freshwater stream that meanders through a wide
salt marsh towards the sea.
The castle over
looks Three Cliffs Bay, named after the distinctive limestone crags that jut out into the sea. Smirkenorff flew between these cliffs at the end of the credits.
A selection of photographs taken by Canadanne in June 2014 can be found
here.