Princeton Supplement Essay: Summer

Hello everyone,
I am working on my Princeton supplement, and I would appreciate if someone could clarify the summer question. Is it ok to hone in on one aspect of the past two summers, or do they want everything?
Thanks!!

I did the former last year and I was admitted, so I think it’s fine.

Ok thanks!! I wanted to focus on a trip that I went on (I know it sounds cliché right now, but I won’t write it that way)