We went on a yacht but you don't have to sail everywhere.
They have small motors so you can just motor everywhere if you want.
(Although , come to think of it , fuel capacity might restrict your range)
If you want to sail and you've never done it before they can give you a lesson.
Its relatively easy sailing as the sails aren't big enough to get you into too much trouble.
You don't need a boat liscence.
You have a map book to guide you. Its like a gregorys.
It has all the anchorages shown in it. You just need to tell the operators where you plan to anchor a day in advance. You have a radio sked every arvo.
But basically you have the freedom to go wherever you want within the Whitsundays.
You can anchor off some resorts and have your romantic dinner in a resturant if you like.
We had our food all catered.
They stocked the fridge and freezer and gave us a menu so we didn't have to worry about food.
We went for about seven days which , I reckon , was only just enough time.
They have little tenders with motors that you can motor around the reefs for a spot of fishing.
If your wife is into a bit of adventure she'll love it.
If she's "high maintenance" maybe not so much.
My wife absolutley loved it but I got a few complaints about fishing too much.
It was very much an excercise in compramise and a little frustration ( of the fishing kind).
I'll PM you my number, give me a call if you have any more questions.