Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) in red seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in total length. Tulamben, Bali, Indonesia, Java Sea, August.

Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) camouflaged in red Seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in length. Tulamben, Bali, Indonesia, October.

Alex Mustard / A Pygmy Seahorse (Hippocampus bargibanti) camouflaged in red Seafan (Muricella sp.). Pygmy Seahorses are small, most less than 15mm in length. Tulamben, Bali, Indonesia, October.

Fred Bavendam / Diver exploring the Liberty shipwreck, Bali's most popular dive site, Tulamben, Bali, Indonesia

Alex Mustard / A long arm octopus (Octopus sp) looks out from its burrow in a rubble slope. Java Sea, Seraya, Tulamben, Bali, Indonesia, South East Asia

Alex Mustard / A pair of golden cuttlefish (Sepia esculenta) mating. The male (on the right) transfering sperm to the female (left), which is done when he wraps his arms around her face and deposits a sac of his spe...

Alex Mustard / A pair of needle cuttlefish (Sepia aculeata) hover over the sand, while the male, on the left, gives a warning display with his arms raised, Seraya, Tulamben, Bali, Indonesia, South East Asia.

Juergen Freund / Liberty Wreck fully encrusted with corals, sponges and other marine life, Tulamben, Bali, Indonesia.

Alex Mustard / A male Thorny Seahorse (Hippocampus histrix) on the seabed next to some hydroids. Tulamben, Bali, Indonesia, Java Sea, August.

Alex Mustard / A young Thorny Seahorse (Hippocampus hystrix) hides in the "arms" of a feather star (Crinoid). Tulamben, Bali, Indonesia, Java Sea, September.

Alex Mustard / A female Thorny Seahorse (Hippocampus histrix). Tulamben, Bali, Indonesia, Java Sea, September.

Alex Mustard / A portrait of the face of a yellow Common / Spotted Seahorse (Hippocampus kuda) next to an orange sponge. Tulamben, Bali, Indonesia, Java Sea, September.

Alex Mustard / A pregnant male Common / Spotted Seahorse (Hippocampus kuda) next to an orange sponge. Tulamben, Bali, Indonesia, Java Sea, September.

Tim Laman / Golden damselfish (Amblyglyphidodon aureus) in front of a seafan growing from part of the wreck of the ship Liberty, Tulamben, Bali, Indonesia.

Tim Laman / Saddleback / Blacksaddle coral grouper (Plectropomus laevis) lurking amongst corals on the Liberty shiprwreck, Tulamben, Bali, Indonesia, May 2006

Tim Laman / Blue-spotted grouper (Cephalopholis miniata), soft corals and feather stars at the Liberty shipwreck, Tulamben, Bali Island, Indonesia, May 2006

Doug Perrine / Fishing boats return to shore at dawn after night fishing, Tulamben Bay, Bali, Indonesia, model released

Doug Perrine / Pacific coral rabbitfish {Siganus corallinus} Liberty Wreck, Tulamben Bay, Bali, Indonesia

Doug Perrine / Panda butterflyfish {Chaetodon adiergastos} on coral reef at night, Tulamben Bay, Bali, Indonesia

Doug Perrine / Caledonian stinger / Devil scorpionfish {Inimicus caledonicus} camouflaged on seabed, Tulamben Bay, Bali, Indonesia

Doug Perrine / Zebra lionfish {Dendrochirus zebra} in defensive posture with pectoral fins spread wide and venomous dorsal spines erect, Tulamben Bay, Bali, Indonesia