Lighting

We are planning to film in 2 locations in the same area, this is useful as the natural lighting will be at a similar level in both places.

Key :
Red - Path of characters 
Yellow - possible shooting spots
Blue - good level lighting 
Pink - low level lighting 

This plan shows the places where lighting equipment may be required, in the tunnel part of the filming area, perhaps in the last 2 filming locations on the trail, lighting would have to be quite primitive due to the lack of power supply and inconvenient terrain, primitive being a widespread torch without a direct obvious beam.