Truly, Madly, Deeply - Ali Bin Thalith - Bog

To capture an image of the crystal octopus, one of the ocean's rarest and most elusive creatures, became the goal in Ali bin Thalith's obsession with underwater marine photography. Over 10 years of searching has produced cornucopia of extraordinary deep sea images, of which over 100 are selected here, shot in the Indian and Pacific Oceans.