How did the woman spend last weekend?

M: Hey, Karen. Look like you got some sun this weekend.
W: Yeah. I guess so. I spent the weekend at the beach.
M: Oh, yeah. That’s great. Where did you stay?
W: Some friends of my parents live out there, and they invited me for as long as I wanted to stay.
M: So what are you doing back here?
W: Oh, I have a paper I need to work on. And I just couldn’t do any serious studying at the beach.
M: I don’t blame you. So what did you do out there? I mean besides lie out in the sun, obviously.
W: I jogged up and down the beach and I played some volleyball. You know I never realized how hard it is to run on sand. I couldn’t get through a whole game before I had to sit down. It’s much easier to run on wet sand near the water.
M: Not to mention cooler. Did you go swimming?
W: I wanted to. But they said the water isn’t warm enough for that until a couple of months from now. So I just waded in up to my knees.
M: It all sound’s so relaxing. I wish I could get away to the beach like that.
W: It looks like you could use it. Don’t tell me you spent the weekend in the library again.