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People wearing protective masks to help curb the spread of the coronavirus walk under a canopy of cherry blossoms Sunday, March 28, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Kiichiro Sato)
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People pose in front of cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People wearing protective masks to help curb the spread of the coronavirus walk across a street under a canopy of cherry blossoms Sunday, March 28, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country. (AP Photo/Kiichiro Sato)
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Boys play next to a blooming cherry tree at a park in Tokyo, Japan, March 31, 2021. REUTERS/Kim Kyung-Hoon
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A woman looks at cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People ride a boat looking at cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People ride boats watching cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People wearing protective masks to help curb the spread of the coronavirus take a selfie on a bridge as cherry blossoms bloom over Meguro River Sunday, March 28, 2021, in Tokyo. Cherry blossoms in many parts of Japan used to reach its prime in April just as the country celebrates the start of its new school and business year. Today, they bloom earlier in the spring and are mostly gone for the occasion, most likely because of the climate change. (AP Photo/Kiichiro Sato)A man wearing a protective mask to help curb the spread of the coronavirus pauses under cherry blossoms Friday, March 26, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Eugene Hoshiko)
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A man wearing a protective mask to help curb the spread of the coronavirus pauses under cherry blossoms Friday, March 26, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Eugene Hoshiko)
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People wearing face masks to help protect against the spread of the coronavirus enjoy blooming cherry blossoms from paddle boats in Tokyo, Monday, March 29, 2021. Cherry blossoms in many parts of Japan used to reach its prime in April just as the country celebrates the start of its new school and business year. Today, they bloom earlier in the spring and are mostly gone for the occasion, most likely because of the climate change. (AP Photo/Koji Sasahara)
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People wearing face masks to protect against the spread of the coronavirus take photos of cherry blossoms in Tokyo, Tuesday, March 30, 2021. (AP Photo/Koji Sasahara)
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People wearing protective masks to help curb the spread of the coronavirus gather on bridges as cherry blossoms bloom over Meguro River Sunday, March 28, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Kiichiro Sato)
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People wearing face masks to protect against the spread of the coronavirus walk under cherry blossoms in Tokyo, Tuesday, March 23, 2021. Cherry blossoms in many parts of Japan used to reach its prime in April just as the country celebrates the start of its new school and business year. Today, they bloom earlier in the spring and are mostly gone for the occasion, most likely because of the climate change.(AP Photo/Koji Sasahara)
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A person films a video with his phone on a selfie stick while riding a bicycle under a canopy of cherry blossoms Monday, March 29, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Kiichiro Sato)
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People wearing face masks to protect against the spread of the coronavirus walk under cherry blossoms in Tokyo, Tuesday, March 30, 2021. (AP Photo/Koji Sasahara)
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A bench is seen underneath cherry blossoms in a closed zone, to prevent the spread of the Covid-19 coronavirus, at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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A bench is seen underneath cherry blossoms at a closed zone which is a preventative measure against spread of the COVID-19 coronavirus at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People wearing face masks to protect against the spread of the coronavirus walk under cherry blossoms in Tokyo, Tuesday, March 30, 2021. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country. (AP Photo/Koji Sasahara)
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People looks at cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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A woman wearing face masks to protect against the spread of the coronavirus takes a photo of cherry blossoms in Tokyo, Tuesday, March 30, 2021. (AP Photo/Koji Sasahara)
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A man poses his dog in front of cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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A person poses in front of cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People watch cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People ride boats looking at cherry blossoms at Inokashira Park in Tokyo on March 30, 2021. / AFP / Philip FONG
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People wearing protective masks to help curb the spread of the coronavirus walk under a canopy of cherry blossoms Sunday, March 28, 2021, in Tokyo. Japan's favorite flower, called "sakura," started blooming earlier this month and has already peaked in many places, setting the earliest records in more than a dozen cities across the country.(AP Photo/Kiichiro Sato)
