I can not get meaning of just day hikes. Here is a dialog which I have seen:
"I didn't see the whole thing, and I spend three days there walking different parts every day, so I really don't know the size of it except that it's massive."
"So you just went hiking and then you camped overnight, or did you just hiked for the day?"
"Just day hikes, the tour I had been organized with had rented us a hotel, just stayed in the hotel, slept there at night, and walked most of the day."
Can anyone explain this?