don't know if you already have Mayreau as one of your overnights, and also don't know if salt whistle bay is good for overnight, but salt whistle bay is absolutely gorgeous and you can call dennis' for a great dinner.

http://www.dennis-hideaway.com/

you can call him and he will arrange dinner for you in a nice setting and killer rum punches. You can either catch a cab at the little beach bar there in the cove or call him and he will pick you up.