Members of a Laughter Yoga club practice laughter yoga in Ly Thai To Park in Hanoi, Vietnam, on Dec. 23. About 200 members of the club wearing Santa Claus costumes gathered at the park to celebrate the upcoming Christmas and New Year. Laughter yoga is a physical exercise that has recently been imported to Vietnam.

A Balinese man dressed as Santa Claus takes advantage of the good sea conditions as he goes surfing off a beach in Kuta, Bali, Indonesia, on Dec. 22.

People dressed as Santa Claus row boats on the Venice canal on Dec. 22.

The liquefied natural gas (LNG) carrier OB River moves through ice in the arctic on Nov. 14.

The LNG carrier OB River moves through ice in the arctic on Nov. 14.

The LNG carrier OB River moves through ice in the arctic on Oct. 8.

A labourer, with his hands covered in sawdust, grinds away a portion of a wooden cargo ship during its overhaul in Karachi's Fish Harbour on Sunday. The process of overhauling a boat takes about a week, in which the boat is brought to dry land and its wooden panels and paint serviced by a team of 20 carpenters and labourers, before it is set back to sea.

A labourer, his face covered to guard against sawdust, grinds away a portion of a wooden cargo ship during its overhaul in Karachi's Fish Harbour.

Rescue workers help a crew member from a stranded trawler into a rescue boat.

Onlookers walk past the stranded fishing trawler.

Sea waves hit the Blue Star Paros vessel during a nine-hour trip to the Greek islands of Paros, Naxos, Ios and Santorini, in the Aegean Sea on March 14, 2012.

A Greek passenger seen on the Blue Star Paros vessel during a nine-hour trip to the Greek islands of Paros, Naxos, Ios and Santorini.

Foreign tourists admire the volcanic island of Santorini.

An aerial view taken from a Greek military Super Puma all-weather helicopter shows a 60-meter-long yacht running adrift after taking in water in the sea area between the islands of Skyros and Psarra, central Aegean Sea, Greece on Feb. 17. All passengers and crew, eight French nationals, were airlifted from the distressed yacht and are all safe.

A handout picture provided by the Hellenic Air Force taken from a military Super Puma all-weather helicopter shows a 60-meter long yacht running adrift after taking on water between the islands of Skyros and Psarra, central Aegean Sea, Greece on Feb. 17. All the passengers and crew, eight French nationals, were airlifted from the distressed yacht and are all safe.

A police officer carries a young survivor to an immigration office in Watulimo, Indonesia, on Dec. 18, 2011. More than 200 people were feared dead after a heavily overloaded boat packed mostly with Afghan and Iranian asylum-seekers sank off Indonesia en route to Australia.

An asylum seeker who survived crys during an interviewe in Blitar, East Java, on Dec. 19, 2011.

A survivor receiving treatment on Dec. 19, 2011 in Blitar, East Java. The tragedy is expected to further inflame the debate in Australia as how best to handle the influx of asylum seekers.

Thai residents make their way across a flooded street near to the rising waters of the Chao Phraya river on October 29, 2011 in Bangkok, Thailand. Around 370 people have died in flood-related incidents since late July according to the Department of Disaster Prevention and Mitigation. Thailand is experiencing the worst flooding in 50 years with damages running as high as USD 6 billion which could increase as the floods swamp Bangkok.

Men paddle their makeshift raft through a flooded street in central Bangkok October 29, 2011. Receding floodwaters north of Bangkok have reduced the threat to the Thai capital, the prime minister said Saturday, but high tides in the Gulf of Thailand will still test the city's flood defences.

A man drinks water on a mattress floating along a flooded street in central Bangkok October 29, 2011. Receding floodwaters north of Bangkok have reduced the threat to the Thai capital, the prime minister said Saturday, but high tides in the Gulf of Thailand will still test the city's flood defences.

Thai residents use an improvised raft as they move to higher ground along a flooded area in Bangkok, Thailand, Saturday, Oct. 29, 2011. The complex network of flood defenses erected to shield Thailand's capital from the country's worst floods in nearly 60 years was put to the test Saturday as coastal high tides hit their peak.

Local residents use rafts in an area near the Chao Praya river in Bangkok on October 29, 2011. Floods engulfing parts of the Thai capital should start to recede soon, the prime minister said on October 29, after barriers along Bangkok's swollen main river prevented a disastrous overflow.

An Indian Navy helicopter rescues a crew member off a sinking ship off the coast of Mumbai, India, on Thursday, Aug. 4, 2011. The ship was carrying 60,000 tons of coal from Indonesia to India and sank off the coast of Mumbai after its crew of 30 was rescued when it began taking on water in stormy seas.

A crew member of a sinking ship is hoisted onto an Indian Navy helicopter performing rescue operations as merchant ship MV Rak sinks in the Arabian Sea off the coast of Mumbai, India, on Thursday, Aug. 4.

Rescued crew members sit aboard a container ship after being rescued from their stricken vessel off the Mumbai coast. The Panama-flagged MV Rak Carrier, a 220-meter (722-foot) long vessel was on voyage from Indonesia to Port Dahej (Gujarat), carrying coal, when it sank off the coast of Mumbai, after all of its 30 crew comprising of Indonesians, Jordanians and Romanians were airlifted by two helicopters and ferried across to the helicopter base INS Shikra.

Students compete in the traditional punt race on the Neckar river in the southern German city of Tuebingen on June 23, 2011. The boats are up to 12 metres in length with each with eight crew members.