[There's definitely a reaction when Astolfo mentions the cruise liner, a twitch in his expression and a slight tensing of his muscles... before he forces himself to relax again, though perhaps... not as much as he'd like to be. The slight shift in his expression and tone hints at the fact that they've touched on something that he isn't comfortable thinking about.]

A cruise liner is all well and good, but I would prefer something like a speedboat. You and the endless ocean; you can go wherever you please.