Agricultural - I use a Mapir Survey 3 camera that does multi-spectrum images to look at the health of the plants. I can do 500 acres in one visit.
Construction - Stockpile photos and progression photos- See the progression of the work done and or see the amount of stock pile you have.
Quarry /Pit- Make real-time measurements including distance, area and volume.

Underwater - Videos and photos of the underside of boats, docks, underwater pipe line also search in flooded out quarry. Can go 125 ft underwater at 4K resolution.