"Where are you going for summer vacation this year?" is the Engpsh way of asking someone where they will be going for their summer vacation in the current year.

The phrase "summer vacation" refers to the period of time when schools and universities are typically closed for the summer, allowing students to take a break from their studies. This period of time varies depending on the country and region, but is often several weeks long.

Here are some example sentences using the phrase "summer vacation" in different contexts:

"I'm planning to go to Europe for my summer vacation." (我计划去欧洲度假。)
"My parents always take us to the beach for our summer vacation." (我的父母总是带我们去海边度假。)
"I can't wait for summer vacation to start so I can relax and have some fun." (我迫不及待想要开始暑假，这样我就可以放松并玩得开心了。)