Dealing with wife's depression: Start out with small steps!

Consult her doctor, if she gives you permission, regarding the cruise. Each person, suffering from depression, is in their own place, so no one strategy will work across the board.

But, do start out with small steps, like going away for a weekend. Be quite directive about it, since she has little will power of her own right now. Then see how she responds. Someone who is depressed can't remember the pleasant experiences they've had, even recently, and they can't imagine having a positive experience when presented with a new activity.

Also, take good care of yourself. Get the nutrition, exercise, sleep and relational needs met on a consistent schedule.

While at home, open up and lighten up your living spaces. Play up beat music, at have her stay away from the TV. Better for her to read than watch TV.

Good luck!