A woman snorkeling observes a group of fish on the Arinaga beach, in the island of Gran Canaria, Spain April 29, 2023. REUTERS/Borja Suarez 

Metavee Chuangcharoendee, 27, from the Maya Shark Watch Project, and who is also a marine biologist with the Department of Marine and Coastal Resources of Thailand, pauses while snorkelling as she removes pieces of abandoned fishing nets from a coral reef in Maya Bay, at the Phi Phi Island National Park, on Phi Phi Leh Island, Krabi province, Thailand February 26, 2023. With the number of sharks in Maya Bay already dwindling, authorities and conservationists are intent on keeping tourists from swimming in the bay and driving away the baby sharks, which hide in the shallows and coral reefs from the cannibalistic adults. "We are hoping that with the restrictions in place, we can mitigate the disturbance to (the sharks). We are doing this research in hopes that we can find the best way to manage and the best way for tourism and the environment to coexist," Metavee said. REUTERS/Jorge Silva SEARCH "SILVA THAILAND SHARKS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Tourists and snorkelers visit a beach on Liuqiu island, a tourist spot known for its sea turtles,Taiwan August 5, 2022. REUTERS/Ann Wang 

People wearing snorkelling equipment walk in the waters off Liuqiu island, a tourist spot known for its sea turtles, in Taiwan August 5, 2022. REUTERS/Ann Wang 

Visitors join a snorkelling tour in the waters off Liuqiu island, a tourist spot known for its sea turtles, in Taiwan August 5, 2022. REUTERS/Ann Wang 

People wearing snorkelling equipment are seen by a beach on Liuqiu island, a tourist spot known for its sea turtles, in Taiwan August 5, 2022. REUTERS/Ann Wang 

A woman points at people snorkelling in the waters off Liuqiu island, a tourist spot known for its sea turtles, in Taiwan August 5, 2022. REUTERS/Ann Wang 

Fijian fisherwomen snorkel to harvest sea grapes at sea, near Namuaimada village, Viti Levu, Fiji July 15, 2022. Picture taken with a drone. REUTERS/Jill Gralow 

A Fijian fisherwoman snorkels to harvest sea grapes at sea, near Namuaimada village, Viti Levu, Fiji July 15, 2022. REUTERS/Jill Gralow 

Diving instructor Jesus Maduro, co-owner of Aruba Bob Snorkeling, talks to Reuters, in San Nicolas, Aruba, April 9, 2021. Picture taken April 9, 2021. REUTERS/Luc Cohen 

A man adjusts his snorkel at a pool where a "Green Badge" is required to enter, as Israel reopens swathes of its economy, continuing to lift restrictions of a national lockdown to fight the coronavirus disease (COVID-19), at Gordon Gym and Pool in Tel Aviv, Israel February 21, 2021. REUTERS/Ronen Zvulun 

Tourists walk after snorkeling, during a low tide in the Red Sea resort of Sharm el-Sheikh, Egypt, February 14, 2021. REUTERS/Amr Abdallah Dalsh 

Tourists enjoy snorkeling in the Red Sea resort of Sharm el-Sheikh, south of Cairo, Egypt February 6, 2021. Picture taken February 6, 2021. REUTERS/Amr Abdallah Dalsh 

Thai gold miner in snorkel mask searches for place to dig for gold-bearing mud on the Sai Buri river at Sukhirin, Thailand December 28, 2020. Picture taken December 28, 2020. REUTERS/Matthew Tostevin 

People snorkel around coral reefs during a summer vacation on the Orange beach at a Red Sea resort, amid the coronavirus disease (COVID-19) pandemic, in Hurghada, Egypt August 25, 2020. REUTERS/Amr Abdallah Dalsh 

A man holds his snorkelling gear on the sunset near the Black Sea village of Molochnoye, Crimea July 23, 2020. Picture taken July 23, 2020. REUTERS/Alexey Pavlishak 

Volunteer dentists convert snorkel masks into respirators, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

A view shows snorkel masks to be converted into respirators, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

Volunteer dentists assemble snorkel masks and convert them into respirators, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

Volunteer dentists assemble snorkel masks and convert them into respirators, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

A volunteer dentist works on converting a snorkel mask into a respirator, using 3D printing technology, to reinforce hospitals and help patients suffering from the coronavirus disease (COVID-19) in Algiers, Algeria April 15, 2020. Picture taken April 15, 2020. REUTERS/Ramzi Boudina 

A worker prepares the fittings for an HMEF viral filter to be added to a full-face snorkel mask developed by MasksOn.org, a non-profit organization donating snorkel masks that have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Roy adds the fitting for an HMEF viral filter to a full-face snorkel mask while assembling the face masks developed by MasksOn.org, a non-profit organization donating snorkel masks that have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Rousseau, Head of Engineering, models a mask developed by MasksOn.org, a non-profit organization donating full-face snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Roy adds the fitting for an HMEF viral filter to a full-face snorkel mask while assembling the face masks developed by MasksOn.org, a non-profit organization donating snorkel masks that have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

Dane Kouttron, a co-developer at MasksOn.org and a Nuclear Research Engineer at MIT, holds a mask developed by MasksOn.org, a non-profit organization donating full-face snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Roy adds a fitting for an HMEF viral filter to a full-face snorkel mask while assembling the face masks developed by MasksOn.org, a non-profit organization donating snorkel masks that have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Rousseau, Head of Engineering, models a mask developed by MasksOn.org, a non-profit organization donating full-face snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

Dane Kouttron, a co-developer at MasksOn.org and a Nuclear Research Engineer at MIT, holds a full-face snorkel mask with an HMEF viral filter developed by MasksOn.org, a non-profit organization donating full-face snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Rousseau, Head of Engineering, models a mask developed by MasksOn.org, a non-profit organization donating full-face snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Rousseau, Head of Engineering, holds the fitting and HMEF viral filter to be added to a full-face snorkel mask developed by MasksOn.org, a non-profit organization donating snorkel masks which have been retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

John Roy assembles face masks developed by MasksOn.org, a non-profit organization donating full-face snorkel masks retrofitted into reusable, sanitizable emergency face masks to protect front-line healthcare workers amid the coronavirus disease (COVID-19) outbreak, in Haverhill, Massachusetts, U.S., April 16, 2020. REUTERS/Brian Snyder 

A patient suffering from coronavirus disease (COVID-19) wears a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease continues in France, April 1, 2020. REUTERS/Benoit Tessier 

A patient suffering from coronavirus disease (COVID-19) wears a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease continues in France, April 1, 2020. REUTERS/Benoit Tessier 

A patient suffering from coronavirus disease (COVID-19) wears a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease continues in France, April 1, 2020. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY 

A patient suffering from coronavirus disease (COVID-19) wears a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease continues in France, April 1, 2020. REUTERS/Benoit Tessier 

A medical staff holds a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease (COVID-19) continues in France, April 1, 2020. REUTERS/Benoit Tessier 

A patient suffering from coronavirus disease (COVID-19) wears a full-face Easybreath snorkelling mask given by sport chain Decathlon and turned into a ventilator for coronavirus treatment at the intensive care unit at Ambroise Pare clinic in Neuilly-sur-Seine near Paris, as the spread of the coronavirus disease continues in France, April 1, 2020. REUTERS/Benoit Tessier 

A volunteer assembles a snorkel mask transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

A volunteer assembles a snorkel mask transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

A snorkel mask transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak is seen at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

A researcher assembles a snorkel mask transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

Volunteers assemble snorkel masks transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

A researcher holds a snorkel mask transformed into high-grade protection for medical workers facing the coronavirus disease (COVID-19) outbreak at the Czech Institute of Informatics, Robotics and Cybernetics at Czech Technical University in Prague, Czech Republic, March 30, 2020. REUTERS/David W Cerny 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A nurse wears a full-face snorkelling mask, as part of a donation of 50 snorkeling masks by sports chain Decathlon, transformed as respirators to help treat coronavirus disease (COVID-19) patients at the Erasme (Erasmus) Hospital in Brussels, Belgium March 30, 2020. REUTERS/Yves Herman 

A tourist snorkels near a beach of the Red Sea resort of Sahl Hasheesh, Hurghada, Egypt, January 8, 2020. Picture taken January 8, 2020. REUTERS/Amr Abdallah Dalsh 

Tourists warm themselves after snorkeling near a beach of the Red Sea resort of Sahl Hasheesh, Hurghada, Egypt January 8, 2020. Picture taken January 8, 2020. REUTERS/Amr Abdallah Dalsh 

Tourists snorkel near a beach of the Red Sea resort of Sahl Hasheesh, Hurghada, Egypt January 8, 2020. Picture taken January 8, 2020. REUTERS/Amr Abdallah Dalsh 

Graduate student Naomi Huntley snorkels after a dive to inspect corals affected by Stony Coral Tissue Loss Disease (SCTLD) near the University of the Virgin Islands campus in St Thomas in the U.S. Virgin Islands, May 17, 2019. REUTERS/Lucas Jackson 

Competitors in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden 

A competitor in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden 

A competitor swims in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden 

Competitors wear fancy dress in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden 

Competitors wear fancy hats in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden 

A competitor swims in the World Bog Snorkelling Championships, Llanwrtyd Wells, Powys, Wales, Britain August 25, 2019. REUTERS/Rebecca Naden