Biggles: Adventures in Time (1986)
Underground tunnels
FILMING LOCATION:
Chislehurst Caves 
,
Chislehurst,
Kent
View Map
Notes:
The ending of the film was also shot here.
Underground tunnelsFILMING LOCATION:
Chislehurst Caves ,
Chislehurst,
Kent
The ending of the film was also shot here.