Sinkhole, Guatemala
Sinkhole, Guatemala scene 1
Sinkhole, Guatemala scene 2
Mirny Diamond Mine, Siberia
Mirny Diamond Mine, Siberia scene 1
Mirny Diamond Mine, Siberia scene2
Kimberley Big Hole – South Africa
Kimberley Big Hole – South Africa scene 1
Great Blue Hole, Belize
Great Blue Hole, Belize scene1
Glory Hole – Monticello Dam
Glory Hole – Monticello Dam scene 1
Glory Hole – Monticello Dam scene 2
Glory Hole – Monticello Dam scene 3
Diavik Mine, Canada1
