“El rio mas bonito del Mundo”, the most beautiful river of the world, the “River of five colors”, the “Rainbow River”, or even the “Escaped from Paradise”, are the shimmering appellations that Colombians give to Cano Cristales, a small stream located in the heart of the Macarena National Park, 150 km (93 miles) south of Bogota. Photo: A waterfall is seen at the end of the rainy season, in August, when the water level finally decreases, in the Cano Cristales RIver in the Sierra de la Macarena in Colombia. It has become covered with a bright pink endemic aquatic plant, Macarenia Clavigera. (Photo by Olivier Grunewald)

An Indian labourer sifts coloured powder, known as “gulal”, to be used during the forthcoming spring festival of Holi, inside a factory at Fulbari village on the outskirts of Siliguri on March 6, 2017. Holi, the popular Hindu spring festival of colours is observed in India at the end of the winter season on the last full moon of the lunar month, and will be celebrated on March 13 this year. (Photo by Diptendu Dutta/AFP Photo)

A devotee with his body painted poses as he waits to perform during a ritual as part of the annual Shiva Gajan religious festival at Sona Palasi village, in West Bengal, India, April 11, 2016. Devotees offer sacrifices and perform acts of devotion during the festival in the hopes of winning the favour of Hindu god Shiva and ensuring the fulfillment of their wishes, and also to mark the end of the Bengali calendar year. (Photo by Rupak De Chowdhuri/Reuters)

Winner. “This was taken in the South Ari Atolls, Maldives, as the south-west monsoon season was setting in. It features my partner – and dive buddy – Emma after surfacing at the end of the last dive of the day to find 1.5 metre swells and dark monsoon clouds. MICK RYAN, JUDGE: This beautiful portrait of a diver in an ocean swell below a menacing sky stands out this month for its emotional and elemental beauty. It is a reminder that while we may play among nature we are always dwarfed by its power and must be constantly on our guard”. (Photo by Simon Dunn/The Guardian)

Rocky the cat's recovery from a nerve condition in his legs is coming along swimmingly – thanks to regular hydrotherapy sessions at a 20ft-long swimming pool in United Kingdom in the second decade of March 2022. The two-year-old wears a life vest to help keep him afloat and needs a plastic toy to lure him from one end of the pool to the other. (Photo by Max Willcock/BNPS Press Agency)

A handout picture provided by the Vatican Media shows Pope Francis holding a flag of Ukraine that was sent to him from the Ukrainian town of Bucha during the weekly general audience in the Paul VI Audience Hall, in Vatican City, 06 April 2022. The pontiff lamented the “massacre of Bucha”, in the Kyiv suburb where dozens of bodies in civilian clothing have been found, and renewed his calls for an end to the war in Ukraine. (Photo by Vatican Media Handout/EPA/EFE)

Students from Cambridge University make their way home after celebrating the end of the academic year at a May Ball in Trinity College on Tuesday, June 21, 2022. The first official May Ball in Trinity College's grounds was held in 1866 with the tradition quickly spreading to the other colleges. (Photo by Joe Giddens/PA Images via Getty Images)

A Palestinian employee sprays antibiotics on a newborn lion cub at Nama zoo in Gaza City, Saturday, August 13, 2022. Three one-day-old lion cubs were put on display inside a cardboard box Saturday at a Gaza City zoo. The lioness gave birth five days after Israel and Palestinian militants ended a fierce round of cross-border fighting that saw thundering Israeli airstrikes and Palestinian rocket fire. (Photo by Fatima Shbair/AP Photo)