With a knowledgeable guide, it’s an enjoyable experience.
You can photograph as much as you like, though there may be a specific restriction for one aircraft.
Things are packed in the space, so not necessarily clear shots.
A few motorbikes, vehicles and other WW2 miscellaneous.
And you will get a good view of anything flying.
Worth a visit if in the area.
Pete.
Heritage 1 Hangar Biggin Hill 
HA-1112 German AF 9 white G-AWHH 1 Biggin Hill
VS Spitfire RAF TE184 G-MXVI 3 Biggin Hill 
VS Spitfire RAF DU-V 1 Biggin Hill 
VS Spitfire RAF LZ842 G-CGZU 1 Biggin Hill
VS Spitfire Burmese AF UP441 (ML119) G-SDNI 1 Biggin Hill
Hurricane RAF P2921 G-CHTK 1 Biggin Hill 
Me109 German AF 14 white G-CIPB 1 Biggin Hill
NA P-51D USAAF 413779 G-CMDK Biggin Hill
Curtiss P-40N USAAC 47092 N293FR 1 Biggin Hill
NA Texan 1 Biggin Hill 
VS Spitfire RAF RM694 G-DBKL 1 Biggin Hill 
VS Spitfire RAF MT818 G-AIDN 3 Biggin Hill 
VS Spitfire RAF MJ627 G-BMSB 1 Biggin Hill
Heritage 4 RR Merlin Biggin Hill 
Heritage 9 Jeep Biggin Hill
Heritage 13 Parachute Bikes Biggin Hill