vacation  

What are you doing over vacation? (informal)

I'm traveling. 

I’m visiting my family. 

vacation 

When are you taking a vacation? 

I'm taking a vacation in August. 

"Where are you going on vacation? 
(informal)"

I’m going on a beach holiday. 

I'm going hiking. 

I'm staying at home. 

I'm resting. 

I'm renovating the apartment. 

I'm doing an internship.