A bikini competition aims to reinvent what it means to get older

All contestants in a bikini competition in China are older than 55.

The organizers of the contest want people to know getting older is no big deal.

China has one of the fastest-growing elderly populations in the world. And a Pew Research Center survey found 67 percent of Chinese said aging was a problem there.

SEE MORE: You Might Be Aging, But That Doesn't Mean Your Brain Stops Growing

Inside the competition:

17 PHOTOS
Bikini contest for people aged 55 and older
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Bikini contest for people aged 55 and older
Participants in the Third Grandbikini event wear their bikinis as they wait for judges decisions in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
A participant walks before judges during the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj TPX IMAGES OF THE DAY
A participant performs before judges during the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants get ready for the Third Grandbikini event to start in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants take pictures of themselves after the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants take pictures of themselves before the start of Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
A participant gets ready for the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
A participant in the Third Grandbikini event reacts after being awarded by judges in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants get ready for the Third Grandbikini event to start in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Ma Jing, a 78-year old cancer survivor and the eldest participant in the Third Grandbikini event, smiles as she talks to other ladies in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants in the Third Grandbikini event wait to walk in front of judges in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
A participant walks before judges during the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants wear bikinis during the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Ma Jing, a 78-year old cancer survivor and the eldest participant in the Third Grandbikini event, poses for a picture in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
Participants take part in a dance show during the Third Grandbikini event in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
A participant in the Third Grandbikini event poses for a picture before going in front of judges in an aqua park in Tianjin, China July 22, 2017. Over 400 participants, all older than 55, walked before judges in bikinis, traditional and evening dresses in an annual event organised by local elderly welfare group. REUTERS/Damir Sagolj
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But at the bikini contest, no one seems too concerned — especially the more than 400 participants.

"[We] should let the elderly live a healthy life rather than live in illness. Time of long-term care [for the elderly] — which worries our family, society and the government most and which is the biggest responsibility for them — is shortened through healthy and active pursuits," said Fang Jiake of Hetong Elderly Welfare Association.

Various awards are up for grabs. The judges rate participants' stage presence, smiles and gestures.

This is the third annual competition. This year, the oldest contestant is a 78-year-old cancer survivor.

"I'm very honored. I can participate in a bikini [contest] at this age. For me it means [I'm] mentally happy and physically healthy," competitor Ma Jing said.

Related: Competition in China searches for the best butt

19 PHOTOS
China's 'Best Butt' competition
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China's 'Best Butt' competition
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
In this picture taken on June 24, 2017 participants take part in the 'Women's Beautiful Buttock series' contest shopping mall in Shenyang, Liaoning province. / AFP PHOTO / STR / China OUT (Photo credit should read STR/AFP/Getty Images)
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