旅行に行きたい

want to go on a trip

→ 旅行
phrase Rare #38,176
want to go on a trip 旅行 means “trip” or “travel,” and ~に行きたい means “want to go to.”
JA: 夏休みに北海道へ旅行に行きたい。
EN: I want to go on a trip to Hokkaido during summer vacation.

オーストラリア旅行に行きたいんだよ

I want to go on a trip to Australia.

もっと旅行に行きたいんだけど先立つものがなくて

I’d like to travel more, but I just don’t have the money for it.

どこか旅行に行きたい

I want to go somewhere on a trip.

わたしはあなたと旅行に行きたい

I want to go on a trip with you.