Это исправить грамматические ошибки. "in the spring i went to japan. i saw the cherry blossoms and was eating local food. after japan i visited in abkhazia. (in abkhazia very humid climate.) there i swam in the sea and went shopping. then i went home." скорее всего одна из ошибок в предложении в скобках.
I saw cherry blossoms (без the)
I visited Abkhazia (без in)
I was swimming in the sea
In spring I went to Japan. I saw cherry blossoms and ate local food. After Japan I visited Abkhazia. (It`s very humid climate in Abkhazia.) I swam in the sea and went shopping there. Then I returned home.