Cave of Two Lovers. After dinner.
Zuko: Seriously, where are we going?
Katara: I told you, it's a surprise.
Zuko: (grumpy) You know how I feel about surprises.
Katara: (cheerful) Trust me, you are going to like this one.
Zuko: (Ranting) Well I'm not liking it right now. I'm in a manky, badgermole-infested cave. I have no idea what is going on. First you grab me after dinner, and you were all like "oh let's go for a walk". And I was keen at the start because I thought you meant like our normal "walks" but Noooo! We actually go on a walk through the woods, and we walked for hours!
Katara: (interjecting, amused) We walked for 20 mins.
Zuko: Look, we've walked for a lot longer than we normally do, when we go on our "walks".
Katara: We're almost there. Okay, here. Put out your fireball.
Zuko: But then we'll be in pitch blackness. We wont be able to see a thing. I kind of prefer being able to see the badgermoles coming before they eat my face off.
Katara: A badgermole wont come an eat your face off. That would just be the worst random, terrible, bad luck.
Zuko: You can't say that for sure. Random, terrible, bad luck happens to me all the time! (Katara makes face to acknowledge the truth contained in previous statement.)
Katara: Seriously though. Just trust me, and put it out.
Zuko: Fine, but I still don't see what is so special about hanging out in a pitch black cave. (extinguishes fireball in right hand.)
(The cave ceiling is filled with hundreds oh luminous crystals which project a soft green light).
Zuko: (awed, staring entranced at the ceiling) Woah!
Katara: (grinning) Told you you'd like this surprise. (She slips her hand into his).
Zuko: What is this place?
Katara: The Cave of Two Lovers. This is where Oma and Shu came when they wanted to...go on walks.