How do you say §515Guam旅行から満足げに帰ってきたが、思い出になる写真がなく、カメラを持って行くべきだったのにと言って、彼は非常に後悔した。 in English?

Though he came back from the trip to Guam satisfied, without having any pictures to remember it by, he regretted it a lot, saying that he should have taken a camera with him.