These breathtaking images capture the hidden depths of one of the worlds largest caves, which is so big its home to a beach, a river and a jungle. At more than 130m high, and 150m across, the imposing cave is so big as high as the London Eye and wider than one-and-a-half football pitches. Here: The campers set up inside the cave on the beach. (Photo by Lars Krux/Caters News)

Yulin, a city in southern China, celebrates the summer solstice by throwing a festival that involves the slaughter and consumption of as many as 10,000 dogs. Not everyone in China supports such practices, however; 65-year-old Yang Xiaoyun, a retired teacher who runs an animal shelter in Tianjin, traveled more than 2,400 km (1,500 miles) and spent more than 7,000 yuan ($1,100 or €990) to save 100 dogs from certain death.

An Israeli boy swims next to sheep belonging to a Palestinian farmer in the West Bank village of Al-Auja in the Jordan Valley on April 8, 2015 during the Jewish Passover holiday. Thousands of Israelis spent the day outdoors, picnicking and touring the country during the eight-day Passover holiday, which commemorates the Israelites' exodus from Egypt some 3,500 years ago. (Photo by Menahem Kahana/AFP Photo)

“The Wii U is an upcoming home video game console by Nintendo, and the direct successor to the Wii. The system is expected to be released in 2012 and was unveiled during Nintendo's press conference at the Electronic Entertainment Expo 2011 on June 7, 2011. The Wii U is the first Nintendo console to produce 1080p high-definition graphics, and features a new controller with an embedded touchscreen. The controller allows a player to continue a gaming session by displaying the game even when the television is off. The system will be fully backwards compatible with Wii, and Wii U games can support compatibility with Wii peripherals, such as the Wii Remote and Wii Balance Board”. – Wikipedia

Photo: The new Nintendo game console Wii U is displayed at the Nintendo booth during the Electronic Entertainment Expo on June 7, 2011 in Los Angeles, California. The Wii U will have HD graphics, a controller with a 6.2 inch touchscreen and be compatible with all other Wii accessories. (Photo by Kevork Djansezian/Getty Images)

Ron Mueck's “Big Baby” sculpture appears to look round at Jenny Saville's painting “Interfacing” at the Masterpieces Exhibition at Christie's on June 13, 2011 in London, England. The painting and sculpture feature in the exhibition, open to the public from 13th–15th June 2011, which showcases some of the Ј250 million worth of art for sale over the next four weeks. Artists including Michelangelo, Gainsborough, Goya, Stubbs, Monet, Picasso and Renoir are represented. (Photo by Peter Macdiarmid/Getty Images)

Courthouse facility dogs are professionally trained facility dogs that are graduates from an accredited assistance dog organization that is a member of Assistance Dogs International. They assist crime victims, witnesses and others during the investigation and prosecution of crimes as well as other legal proceedings. Courthouse facility dogs also provide assistance to Drug Court and Mental Health Court participants during their recovery from drugs, alcohol, mental illness and post-traumatic stress disorder.

Afghan dogs fight during the weekly dog fight in Kabul, Afghanistan, 17 February 2017. Under the Taliban dog fighting was forbidden, but since their fall it has become a major source of entertainment for hundreds of Afghans, where bets can amount to thousands of dollars and the dogs, which must be over one year old, are well-cared for by their owners and fed milk, butter and meat. (Photo by Hedayatullah Amid/EPA)

Underwater photographer Sarah Lee uses a technique known as “duck diving” to capture these stunning photos of surfers in Hawaii. Surfers “duck dive” under the water to avoid incoming waves so they can get further out to sea. Photo: A surfer comes free from her surfboard. (Photo by Sarah Lee/Caters News)