Trivia: The land they end up finding at the end of the movie was in fact to be the tip of Mount Everest. I know this because I once saw a copy of the movie where they discovered the plaque left behind by the first climbers of the mountain and it said it was Mount Everest. This was the movie's broadcast premiere on ABC in 1998, and up until recently, the plaque was never shown on-screen again.
Helen: It's not what you think. They weren't after her.
Mariner: I saw what I saw.
Mariner: No more lies. What are the marks on her back?
Helen: People-people say it's the way to Dryland.
Mariner: DRYLAND'S A MYTH!
Helen: No. You said that you know where it is. You did.
Mariner: Then you're a fool to believe in something you've never even seen before.
Helen: I've seen it. I've touched it. Dirt that was richer and darker than yours. It was in the basket we found Enola in.
Mariner: It doesn't exist!
Helen: Well, how can you be so sure?
Mariner: Because, I've sailed further than most have dreamed and I've never seen it.
Helen: But the things on your boat.
Mariner: Things on my boat what?
Helen: There are things on your boat that nobody has ever seen. What are these shells? And the music box? And the reflecting glass? Well, if not from Dryland then where? Where?
Mariner: You want to see Dryland? You really want to see it? I'll take you to Dryland.
Helen: You've been there, haven't you? Dryland? You know where it is.
Mariner: Yeah, I know where it is.
Helen: And uh, and we're going?
Mariner: You and I are. The kid we gotta pitch over the side.
Mariner: My boat's tore up. I'm taking on water. [Points to filtration system.] I'd be lucky to get half a hydro ration out of that.
Helen: You know, I said I won't drink.
Mariner: For twelve days? [Helen nods.] No. It's better that one of you dies now, than both of you die slow.
Helen: Wait. Wait. We saved your life. We got you out.
Mariner: No. You got me out so you could get out. We're even.