Where was Force 10 from Navarone filmed?

Name: Force 10 from Navarone
Released: 1978

1978 film by Guy Hamilton

Force 10 from Navarone (1978) was filmed at 2 places in the United Kingdom: Jersey and Plymouth. Every place comes from Wikidata.

Filming locations

Towns & cities Plymouth England City in Devon, England
Towns & cities Jersey United Kingdom British Crown dependency in the Channel Islands
“During a shot of the railway carriages the letters PSTO(N) can be seen, this stands for Principal Supply and Transport Officer (Navy), and is on Jersey in the Channel Islands.” Wikipedia

The Wikipedia article names 9 more places. Each links to the sentence that says so.

Also filmed in Malta, but the exact places are not known, so they are not on the map.

Its Wikipedia article also says it was filmed in Yugoslavia, without naming a place, so it is not on the map.