After bringing the survey from the sump up to the junction with Mulu, Pat and Melissa take a break. This doorway to deeper reaches of the system lay over 11,000 feet from the main entrance.
Olympus C-8080WZ 1/30s f/7.1 at 7.4mm iso100 with built-in Flash (IR filtered output). Olympus T-32 electronic flash slaved via Firefly provided illumination.
full exif
