YOU SAID:
I am going to holiday in Crete this summer.
INTO JAPANESE
私はこの夏、クレタ島で休暇するつもりです。
BACK INTO ENGLISH
I this summer, I'm going to vacation in Crete.
INTO JAPANESE
私この夏、私はクレタ島での休暇に行きますよ。
BACK INTO ENGLISH
I this summer, I will go on vacation in Crete.
INTO JAPANESE
私この夏、私はクレタ島で休暇に行きます。
BACK INTO ENGLISH
I this summer, I will go on vacation in Crete.
That didn't even make that much sense in English.