Hi, soon it is going to be summertime and I hope to improve on my volunteer work, along with other extracurricular activities. I’m going to be a senior in high school next year and I was wondering if this summer was still plenty of time to work on volunteering? I’m not trying for overly ambitious/difficult schools or anything, I just want to appear as a more well-rounded applicant. 
Thanks! Oh, and what would be some good things to do, volunteering-wise?