Landmarks & buildings
Cardiff Bay Barrage
Barrage across the mouth of Cardiff Bay, Wales
1 film or series was filmed at Cardiff Bay Barrage. Wikipedia names 1 more.

TV series filmed at Cardiff Bay Barrage
Filmed here, per Wikipedia
Wikipedia says these were filmed in Cardiff Bay Barrage too. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landmarks & buildings
Headlands School, Paget Place
Wales · under 1 km
Grade II listed building in Penarth
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Towns & cities
Tiger Bay
Wales · 1 km north
Was the local name for an area of Cardiff in Wales
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Towns & cities
Penarth
Wales · 2 km south-west
Town and community in the Vale of Glamorgan, south Wales
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Landmarks & buildings
Roath Lock
United Kingdom · 2 km north
BBC studio complex in Cardiff, Wales
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Landmarks & buildings
Roald Dahl Plass
Wales · 2 km north
Public plaza in Cardiff Bay in Cardiff, Wales
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Landmarks & buildings
Wales Millennium Centre
Wales · 2 km north
Arts centre in Cardiff