Armed with a snorkel, flippers and her skimpy bikini, an intrepid female free diver swims alongside an array of reef sharks. These amazing photographs were captured by American ocean photojournalist Tim Rock, on a trip north of Papua New Guinea to Vertigo Reef in Yap, Micronesia. ‘I had the pleasure and privilege to team up with diver Ai Futaki for two weeks of photography during an event called Manta Fest in Yap, Micronesia,’ says Tim, of Minneapolis, Minnesota. ‘She is a world champion free diver who wanted to try free diving with sharks and asked if I would document her swimming in Yap's waters.
THE TOWERING Irish cliffs of Moher stand tall over the rippling Atlantic Ocean .
INSIDE Britain's last Naval hospital where scurvy was cured looks like an NHS time capsule .
A grandmother has told how she has been unable to feel emotion for the last 12 years thanks to heart drugs she had to take in order to survive .
BURSTING from the water, a beautiful but deadly Sumatran tiger jumps for food in an Indonesian zoo .
A BIKINI swim with jellyfish sounds like the most painful past-time on the planet .
A lively lemon shark grins into the camera and showcases his impressive teeth .
ALL IS not as it seems in these deceptive cityscapes .
SITTING on a burning sofa unable to move, one man turns his terrifying dreams into reality .
As sunlight cascades through its vibrant stained glass windows, every inch of the Nasir-ol-Mulk Mosque bursts with colour .
NEW DELHI, A woman activist of India's main opposition Bharatiya Janata Party crosses a police barricade near the residence of ruling Congress party chief Sonia Gandhi during a protest against the recent rape of a five-year-old girl in New Delhi, India, April 21, 2013 .