YOU SAID:

I went on a boat trip today and I met four of my friends

INTO JAPANESE

今日はボート旅行に行って、友達4人に会った

BACK INTO ENGLISH

Today I went on a boat trip and met four friends.

INTO JAPANESE

今日私はボート旅行に行き、4人の友達に会いました。

BACK INTO ENGLISH

Today I went on a boat trip and met four friends.