A windsurfer practices on Barra da Tijuca beach in Rio de Janeiro, Brazil January 10, 2019. REUTERS/Sergio Moraes 

A windsurfer prepares to take on the waves on Barra da Tijuca beach in Rio de Janeiro, Brazil January 10, 2019. REUTERS/Sergio Moraes 

A woman is seen as a windsurfer practices on Barra da Tijuca beach in Rio de Janeiro, Brazil January 10, 2019. REUTERS/Sergio Moraes 

A windsurfer sails as strong winds hit the port town of Rafina, near Athens, Greece, September 27, 2018. REUTERS/Alkis Konstantinidis 

A windsurfer tries to stand on his board as strong winds hit the port town of Rafina, near Athens, Greece, September 27, 2018. REUTERS/Alkis Konstantinidis 

A windsurfer sails on Loch Morlich near Aviemore, Scotland, Britain July 26, 2018. REUTERS/Russell Cheyne TPX IMAGES OF THE DAY 

A windsurfer sails on Loch Morlich near Aviemore, Scotland, Britain July 26, 2018. REUTERS/Russell Cheyne 

Pedestrians watch sailboats and windsurfers on the Charles River on the summer solstice in Boston, Massachusetts, U.S., June 21, 2018. REUTERS/Brian Snyder 

A windsurfer is seen while an airplane prepares to land at Larnaca International Airport, Cyprus May 30, 2018. REUTERS/Yiannis Kourtoglou 

People prepare to windsurf at the beach on a warm Eastern Sunday in Valencia, Spain, April 1, 2018. REUTERS/Heino Kalis 

Yulia Boyarintseva, a master of snow boarding and snow kiting sports and a member of the "Skipper" yacht club, dressed as Santa Claus, windsurfs on the Yenisei River while marking the end of the sailboat season, with the air temperature at about minus 17 degrees Celsius (1.4 degrees Fahrenheit), outside the Siberian city of Krasnoyarsk, Russia November 26, 2017. REUTERS/Ilya Naymushin TPX IMAGES OF THE DAY 

Yulia Boyarintseva, a master of snow boarding and snow kiting sports and a member of the "Skipper" yacht club, dressed as Santa Claus, windsurfs on the Yenisei River while marking the end of the sailboat season, with the air temperature at about minus 17 degrees Celsius (1.4 degrees Fahrenheit), outside the Siberian city of Krasnoyarsk, Russia November 26, 2017. REUTERS/Ilya Naymushin 

Yulia Boyarintseva, a master of snow boarding and snow kiting sports and a member of the "Skipper" yacht club, dressed as Santa Claus, windsurfs on the Yenisei River while marking the end of the sailboat season, with the air temperature at about minus 17 degrees Celsius (1.4 degrees Fahrenheit), outside the Siberian city of Krasnoyarsk, Russia November 26, 2017. REUTERS/Ilya Naymushin 

Yulia Boyarintseva, a master of snow boarding and snow kiting sports and a member of the "Skipper" yacht club, dressed as Santa Claus, windsurfs on the Yenisei River while marking the end of the sailboat season, with the air temperature at about minus 17 degrees Celsius (1.4 degrees Fahrenheit), outside the Siberian city of Krasnoyarsk, Russia November 26, 2017. REUTERS/Ilya Naymushin 

Yulia Boyarintseva, a master of snow boarding and snow kiting sports and a member of the "Skipper" yacht club, dressed as Santa Claus, leaves the water of the Yenisei River after windsurfing at the end of the sailboat season, with the air temperature at about minus 17 degrees Celsius (1.4 degrees Fahrenheit), outside the Siberian city of Krasnoyarsk, Russia November 26, 2017. REUTERS/Ilya Naymushin 

Federico James places a windsurfing board on a fence at the entrance of the Argentine Naval Base in support of the 44 crew members of the ARA San Juan submarine missing at sea, in Mar del Plata, Argentina November 20, 2017. REUTERS/Marcos Brindicci 

Federico James drags a windsurfing board with a message to place it on a fence of an Argentine Naval Base in support of the 44 crew members of the ARA San Juan submarine missing at sea, in Mar del Plata, Argentina November 20, 2017. REUTERS/Marcos Brindicci 

Federico James places a windsurfing board on a fence at the entrance of the Argentine Naval Base in support of the 44 crew members of the ARA San Juan submarine missing at sea, in Mar del Plata, Argentina November 20, 2017. REUTERS/Marcos Brindicci 

A windsurfer gets airborne over a wave as strong winds hit the waterfront in Marseille, France, November 13, 2017. REUTERS/Jean-Paul Pelissier 

A windsurfer gets airborne over a wave as strong winds hit the waterfront in Marseille, France, November 13, 2017. REUTERS/Jean-Paul Pelissier 

People practice windsurf on a warm fall day during a long weekend at the Cabanyal beach in Valencia, Spain, October 13, 2017. REUTERS/Heino Kalis 

A windsurfer and rowers are pictured on Lake Leman in Lausanne, Switzerland September 19, 2017. REUTERS/Denis Balibouse 

A windsurfer sails on Lake Leman in Lausanne, Switzerland September 19, 2017. REUTERS/Denis Balibouse 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 10/11/12 - Marina de Gloria - Rio de Janeiro, Brazil - 12/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian SnyderTPX IMAGES OF THE DAY FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 10/11/12 - Marina de Gloria - Rio de Janeiro, Brazil - 12/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 10/11/12 - Marina de Gloria - Rio de Janeiro, Brazil - 12/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 10/11/12 - Marina de Gloria - Rio de Janeiro, Brazil - 12/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 10/11/12 - Marina de Gloria - Rio de Janeiro, Brazil - 12/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing- Preliminary - Men's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Leonard Ong (SIN) of Singapore is pictured before the competition. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing- Preliminary - Men's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 4/5/6 - Marina de Gloria - Rio de Janeiro, Brazil - 09/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore competes during the third race. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Women's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Audrey Pei Lin Yong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. TSRIO2016 NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore and Natthaphong Phonoppharat (THA) of Thailand compete. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore competes. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore competes during the third race. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Colin Cheng (SIN) of Singapore competes during the third race. TSRIO2016 REUTERS/Brian Snyder FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. 

2016 Rio Olympics - Sailing - Preliminary - Men's Windsurfer - RS:X - Race 1/2/3 - Marina de Gloria - Rio de Janeiro, Brazil - 08/08/2016. Leonard Ong (SIN) of Singapore, Santiago Grillo (COL) of Colombia and Chun Leung Michael Cheng (HKG) of Hong Kong are seen before competing. TSRIO2016 REUTERS/Ricardo Moraes FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

A bird stands on a boat refloated from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Business partners Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Anderson (orange wetsuit) and Leandro inspect the boat they were hired to refloat under contract for its owner from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Leandro sits in the boat he and his business partner Anderson were hired to refloat from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Leandro treads water next to the boat he and his business partner Anderson were hired to refloat from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Anderson ties plastic barrels to a boat he was hired to refloat from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and his business partner Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Anderson inspects the boat that he and his business partner Leandro were hired to refloat under contract for its owner from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Leandro sits in the boat he and his business partner Anderson were hired to refloat from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

Anderson ties plastic barrels to a boat he was hired to re-float from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and his business partner Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY 

Anderson (R) and Leandro inspect the boat they were hired to refloat under contract for its owner from the bottom of Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Anderson and Leandro salvage sunken boats from the bottom of the notoriously polluted bay part of which will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes

The sun rises behind a pier on the Guanabara Bay in Rio de Janeiro, Brazil, July 31, 2016. Part of the notoriously polluted bay will host the Olympic windsurfing and sailing competitions. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY 

American sailor Brad Funk collects garbage during a small clean-up effort to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj

American sailor Brad Funk collects garbage during a small clean-up effort to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj

American sailor Brad Funk collects garbage during a small clean-up effort to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj

American sailor Brad Funk collects garbage during a small clean-up effort to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj

A sign reading "In my boat, the garbage leaves only in bags" is seen as Brazilian volunteer Camila Avelar accompanies a small clean-up effort led by American sailor Brad Funk to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj

Brazilian volunteer Camila Avelar looks retrieves garbage during small clean-up effort led by American sailor Brad Funk to remove rubbish from the notoriously dirty Guanabara Bay, ahead of the Rio 2016 Olympic Games in Rio de Janeiro, Brazil July 29, 2016. Funk's girlfriend, British windsurfer Bryony Shaw, will compete for Team GB. REUTERS/Damir Sagolj