Chinese paramilitary policemen train in the mud in Chuzhou city in central China's Anhui province on July 18, 2012.
Take a look through some more muddy images on PhotoBlog.

AP
Chinese paramilitary policemen train in the mud in Chuzhou city in central China's Anhui province on July 18, 2012.
Take a look through some more muddy images on PhotoBlog.

Johanna Kannasmaa / EPA
Players in action during the Swamp Soccer Championships 2012 in Hyrynsalmi, Finland. All pictures taken on on July 14, 2012 and made available to NBCNews.com on July 16.

Johanna Kannasmaa / EPA

Johanna Kannasmaa / EPA

Johanna Kannasmaa / EPA
A match between Telinekataja (in orange) and last year's winners FC Lerssi (in white).

Johanna Kannasmaa / EPA
The manager of one of the losing teams wallows in the mud.
Over 300 teams and 5,000 players competed in the annual Swamp Soccer Championships in Hyrynsalmi, Finland over the weekend.
Read more about Finland's impressive collection of bizarre sporting events, which also include wife-carrying and cellphone-throwing contests, and take a look through some more muddy images on PhotoBlog.

Lee Jae-Won / Reuters
A tourist reacts as he plays in mud during the opening day of the Boryeong Mud Festival at Daecheon beach in Boryeong, about 190 km (118 miles) southwest of Seoul, on July 14. About 2 to 3 million domestic and international tourists visit the beach during the annual festival, according to the festival organisation.

JEON HEON-KYUN / EPA
Festival visitors are covered with mud during the 15th Boryeong Mud Festival on Daecheon beach in Boryeong City, 190km west of Seoul, South Korea, on July 15. During the festival period, tourists flock to the area to experience the beneficial properties of the Boryeong mud, as well as for entertainment. Fully immersed in the mud, visitors enjoy mud wrestling, mud sliding and even swimming in the mud mega tub. Boryeong Mud Festival runs from July 14 until the 24.

JEON HEON-KYUN / EPA
Festival visitors are covered with mud during the 15th Boryeong Mud Festival on Daecheon beach in Boryeong City, 190km west of Seoul, South Korea, July 15 2012.
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Jeff Kowalsky / EPA
Kids play in the pit during the annual Mud Day at Nankin Mills recreation complex in Westland, Michigan, o Tuesday. The mud pit contains 180 metric tons of clean fill dirt with 76,000 liters of water.

Bill Pugliano / Getty Images
Kellan Clegg (right), age 9, of Livonia, Michigan, gets covered in mud by his friends while playing in a giant lake of mud at the 25th annual "Mud Day" in Westland, Michigan. The event, which features a 75' by 150' pit filled with 20,000 gallons of water and 200 tons of topsoil, draws about a thousand children each year.

Bill Pugliano / Getty Images
Ben Rojewski, age 11, of Livonia, Michigan rises from the mud.

Jeff Kowalsky / EPA
Isiah Sanders (L) is held by his father Horace Sanders (2nd L) as he is hosed off after playing in the mud pit.

Abedin Taherkenareh / EPA
A picture made available on Friday shows an Iranian tourist visiting the historic mud volcano called Gel-Afshan in the city of Chabahar in south-eastern Iran. A natural phenomenon of gas rising from the depths of the earth raises a hill of mud over time.

Abedin Taherkenareh / EPA
Tourists climb the mud volcano called Gel-Afshan.

Abedin Taherkenareh / EPA
A close-up view of bubbling mud.
Much of the photography reaching us from Iran focuses on matters of political conflict, so these images of a curious geological site are a pleasant change.

Marko Djurica / Reuters
People bathe in mud in the village of Ovca near Belgrade, Serbia, Aug. 21. In the 'Ovcanska Spa' the water is salty and comes from the depth of several hundred meters with high mineral content. Locals believe that various vein diseases, rheumatics, sciatica, and vision disorders are treated by the curative mud and mineral water that contains more than 28 minerals.
I wonder if this mud has a high sulfur content, as the one time that I soaked in a natural mud spa, I had to dispose of my swimsuit and the clothes that I wore later that day since not even the laundry could get the smell out. Despite all of that, I would absolutely soak in the mud again since it felt great!

Lang Lang / Reuters
Participants play handball in a mud flat in Zhoushan, Zhejiang province, China, on July 7.
Reuters reports that more than 400 athletes are taking part in a 'mud sports meet' in Zhoushan, competing in handball, the steeplechase and other events. Looks like fun!

Matt Cardy / Getty Images
Tom Wilder, 17 from Kent, dives in the mud at the Glastonbury Festival site at Worthy Farm, Pilton on June 23, 2011 in Glastonbury, England. The festival, which started in 1970 when several hundred hippies paid 1 GBP to watch Marc Bolan, has grown into Europe's largest music festival attracting more than 175,000 people over five days.
It seems to always be rainy and muddy at this event. This photo was taken yesterday, but just saw it today.
Reuters reports:
The Glastonbury festival opened its gates on Wednesday to 150,000 fans ignoring forecasts for rain and muddy fields to hear U2 and Beyonce alongside a bewildering choice of smaller acts from Spliff Richard to punk poet Attila the Stockbroker.
Now in its fifth decade, the event has grown from a humble gathering of 1,500 people on Michael Eavis's Worthy dairy farm in 1970, each paying one pound ($1.60) and receiving free milk, to a giant five-day celebration of music costing 195 pounds for a basic ticket.

Matt Cardy / Getty Images
Hayley Davenport carries her guitar as she arrives in the mud at the Glastonbury Festival site at Worthy Farm, Pilton on June 22 in Glastonbury, England. Heavy rain and mud greeted music fans as the gates to the five-day festival opened to the public Wednesday morning.

Matt Cardy / Getty Images
A man drags a wheelie bin as he arrives at the Glastonbury Festival site.

Matt Cardy / Getty Images
A festival goer laughs as he arrives at the Glastonbury Festival site.

Matt Cardy / Getty Images
Music fans arrive in the mud and the rain at the Glastonbury Festival site.
The main talking point in the build-up to the festival, held most years on a sprawling site set in picturesque southwest England, is the weather, and the outlook this year looks more mixed than the sun-baked 2010 edition.
Heavy rain means shin-deep mud, leaking tents and sodden crowds, but Britain's Met Office is predicting sunshine, clouds and light rain at the event which ends on Sunday night, and punters are advised to pack sun cream as well as raincoats.
Read the full article at TODAY.com and take a look at our list of ten more great music festivals.

Laszlo Balogh / Reuters
A man drives his vehicle through mud during the Off Road Festival in Somogybabod, 165 km (102 miles) southwest of Budapest June 10, 2011.

Laszlo Balogh / Reuters
A man jumps from his vehicle during the Off Road Festival in Somogybabod.

Laszlo Balogh / Reuters
A Hungarian youth covered in mud attends the Off Road Festival in Somogybabod.