Trevor: [as they are climbing] Hey, look at all the schist.
Trevor: It's a metamorphic rock. Green schist, white schist, mica-garnet schist...
Sean: Oh. Schist.
Sean: [running from a dinosaur] Haven't you ever seen a dinosaur before?
Trevor: Not with skin on it!
[recognizing Mt. Vesuvius behind them]
Trevor: If your mother asks you where you went this weekend, tell her your uncle took you to Italy.
Trevor: What are you doing?
Sean: I am Googling at 30 thousand feet.
Trevor: Are you supposed to be doing that?
Sean: Welcome to the 21st century.
[Sean and Trevor have fallen behind Hannah, tired of climbing]
Sean: I call dibs on the mountain guide.
Trevor: What? You're thirteen; you can't call dibs.
Hannah Ásgeirsson: [all climbing down] Just make conversation with me Sean.
Sean: So, uh, Hannah. Do you come here often?
Trevor: [laughs] That can't be the best you can do!
Sean: [yells] Hey! I'm trying to make converstation!
Hannah Ásgeirsson: It's OK. No Sean, I don't come here often.
Hannah Ásgeirsson: No one gets dibs on the mountain guide.
Trevor: [in complete awe] Ladies and gentlemen, I give you the center of the Earth.
Trevor: [holds up Max's yo-yo] This was your old man's PSP.
Sean: [seeing a deserted field in the center of the Earth] Dang, I wish I read that book.
Trevor: Where are we?
Sean: [Reading from the map] Have we passed... Hvamsvik?
Trevor: Havamsvich? I don't know.
Sean: Have we passed... Engarsstadir?
Trevor: I don't know.
Sean: How about Köldukadarskijökull?