YOU SAID:

I will go kayaking for my birthday, but I need to be careful.

INTO JAPANESE

私は誕生日にカヤックに行きますが、注意する必要があります。

BACK INTO ENGLISH

I go kayaking on my birthday, but I have to be careful.

INTO JAPANESE

私は誕生日にカヤックに行きますが、気をつねな。

BACK INTO ENGLISH

I go kayaking on my birthday, but be careful.

INTO JAPANESE

私は誕生日にカヤックに行きますが、注意してください。

BACK INTO ENGLISH

I go kayaking on my birthday, but be careful.