tourists

Tourists play in the mud during the Boryeong Mud Festival at Daecheon beach in Boryeong...Tourists play in the mud during the Boryeong Mud Festival at Daecheon beach in Boryeong July 18, 2014. About 2 to 3 million domestic and international tourists visit the beach during the annual mud festival, according to the festival organisers.  REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: SOCIETY)

Kim Hong-Ji/Reuters

Tourists play in the mud during the Boryeong Mud Festival at Daecheon beach in Boryeong, South Korea. About 2m-3m domestic and international tourists visit the beach during the annual mud festival. Read more

Visitors walk down a steep section on a restored part of the Great Wall of China, at Mutianyu, north of Beijing on July 4, 2014. The Great Wall, originally built to keep out invaders from the north, stretches thousands of kilometers across northern China, but much of it is in poor condition.

Greg Baker/AFP

Visitors walk down a steep section on a restored part of the Great Wall of China, at Mutianyu, north of Beijing on Friday

Residents and tourists play soccer on Ponta Negra beach in Natal, Brazil, Wednesday, June 25, 2014. Natal is one of many cities hosting the World Cup soccer tournament this month

Hassan Ammar/AP

Residents and tourists play football on Ponta Negra beach in Natal, Brazil

Hundreds of tourists stand on a viewing platform to watch the sunrise in Uluru, Australia, Tuesday, April 22, 2014. The Duke and Duchess of Cambridge will visit Uluru Tuesday during their three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George. (AP Photo/Rob Griffith)

Rob Griffith/AP

Tourists watch the sunrise in Uluru, Australia. The Duke and Duchess of Cambridge visited Uluru on Tuesday during their three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George. Read more

Hong Kong sees very high air pollution levels

Alex Hofford/EPA

Tourists from mainland China take photos in front of a large outdoor banner showing what Hong Kong looks like on a clean air day, on Wednesday. Hong Kong’s air pollution index’ reached ‘very high’ in Central and Western District, Causeway Bay and Mongkok, with ‘very high’ levels of toxic ozone and nitrogen dioxide recorded at roadside monitoring stations

A protester carries stones in one hand and a beer bottle in the other as he kneels in front of burning tyres set by protesters in front of Luxor governorate building to protest against the newly-appointed governor, Adel Mohamed al-Khayat, who was a member of the militant group, al-Gamaa al-Islamiya, in Luxor, June 19, 2013. Al-Khayat was a member of the militant group blamed for slaughtering 58 tourists in Egypt's Valley of the Queens; today he's promising to keep visitors safe. Khayat's appointment by President Mohamed Mursi as governor of the city of Luxor has triggered howls of protest, with demonstrators protesting for a third day on Wednesday and one critic calling it "the last nail in the coffin of tourism".

Reuters

A protester kneels in front of burning tyres in front of Luxor governorate building to protest against the newly-appointed governor, Adel Mohamed al-Khayat. Read more

Tourists look at the Singapore Flyer on a hazy day in Singapore June 17, 2013. The haze worsened on Monday with the Pollutant Standards Index (PSI) hitting 111 at 4 pm, according to local media.

Edgar Su/Reuters

Tourists look at the Singapore Flyer on a hazy day in Singapore on Monday. The haze worsened on Monday with the Pollutant Standards Index hitting 111 at 4 pm, according to local media.

Tourists jump as their friends take photos on Tiananmen square in Beijing on June 4, 2013. Authorities launch a major push every June 4 to prevent discussion of the violently crushed 1989 pro-democracy protests, in which at least hundreds of people died.

Ed Jones/AFP

Tourists jump as their friends take photos on Tiananmen Square in Beijing on Tuesday. Authorities in China launch a major push every year on June 4 to prevent discussion of the 1989 pro-democracy protests that were violently crushed and in which hundreds of people died