Women compare their bikini marks after sunbathing on a terrace to have the perfect bikini line (“marquinha” in Portuguese), at the Erika Bronze spa in Rio de Janeiro, Brazil, November 17, 2016. Women start arriving at the spa between 7am and 8am and will tan for approximately 3 hours. (Photo by Pilar Olivares/Reuters)

Belgian yoga teacher Dorien Dierckx, 29 from Brussels enjoys a beer while relaxing in a jacuzzi full of hot water and a mixture of ingredients used to make beer, and where customers can serve their own beer from the tap at the Good Beer Spa in Brussels, Belgium on May 12, 2021. (Photo by Yves Herman/Reuters)

Deadwood is pictured in the onetime spa and resort town Epecuen, November 5, 2015. Over the past few years the town of Epecuen, located 550 km (341 miles) southwest of Buenos Aires, has been attracting tourists with its eerie apocalyptic atmosphere after a flood submerged it in salt water for more than two decades. Photo by Enrique Marcarian/Reuters)

Award-winning photographer Barry Lewis has been picturing the weird and wonderful late-night Glastonbury experience for more than a decade. Shangri-La is a festival of contemporary performing arts held each year at Glastonbury festival, and Barry Lewis has documented its denizens. Here: Spa in Slumbarave’s Hotel Metropolis, Shangri-La, Glastonbury, 2009. (Photo by Barry Lewis/The Guardian)

Beautician Alex Smith, 26, does the nails of Jules Aspen, 40, at the Madame Beauty salon in Chirton, North Tyneside, UK on July 13, 2020. Nail bars, beauty salons, tattoo and massage studios, physical therapy businesses, spas and piercing services are able to reopen in the latest lifting of restrictions in England. (Photo by Owen Humphreys/PA Images via Getty Images)

Members of the Israeli Mermaids Community bathe in the sea with a mermaid tails at the beachfront in Bat Yam, near Tel Aviv, Israel, Saturday, May 23, 2020. Members of the Israeli mermaid community gathered at the beachfront to mark the beginning of the bathing season. (Photo by Oded Balilty/AP Photo)

In this July 24, 2016 photo, a pilgrim takes a bath in a sacred mud pool during the annual Voodoo celebration in Plaine-du-Nord, Haiti, Saturday, July 23, 2016. Pilgrims come to bathe in the mud and make offerings expecting a miracle. (Photo by Dieu Nalio Chery/AP Photo)

A mahout bathes his elephant in the river Sabarmati on a hot summer day in Ahmedabad, India May 21, 2017. (Photo by Amit Dave/Reuters)