Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

June 8 (UPI) --A swimmer known as the "eco mermaid" broke a Guinness World Record by taking a 26.22-mile swim in the ocean while wearing a monofin. Merle Liivand, a swimmer and conservationist known ...

"At the end of the day this isn't just about a record," swimmer Merle Liivand told Guinness World Records Swimmer Merle Liivand has set a new record for the farthest swim while wearing a monofin. Now, ...

Fans celebrated their first national convention this summer. They claim that swimming with a mermaid tail is a very demanding sport (and art): it involves apnea, synchronization, diving, acrobatics ...

A woman who campaigns for cleaner waterways is attempting to set a new world record for the longest distance swum using a monofin. Lindsey Cole, 42, from Bristol, is aiming to beat the current ...

Aug. 4 (UPI) --An Estonian swimmer celebrated her 30th birthday by swimming 18.6 miles with a monofin and breaking a Guinness World Record. Merle Liivand donned the monofin -- a swimming fin ...

(CNN) — When Merle Liivand first started swimming with a monofin to help with her breaststroke practice, she never could have imagined it would one day lead her to becoming a Guinness World record ...

Campaigner Lindsey Cole is aiming to beat the current world record of 50km (31 miles), swum in 15 hours A woman who campaigns for cleaner waterways is attempting to set a new world record for the ...