Your friend may be right. I was the guest, not the
captain, and relied on the
Captain for the itinerary. He may have hurried north because Carriacou was the first best anchorage. It's Tyrrel Bay was our first stop - nice place.
I believe there is lots in Grenada for tourists to do - culture,
history, and natural hikes; but you are
renting a
boat and want to get out of St Georges. If you are right about
anchorages, then it makes sense to get some miles up at least to the
Tobago Keys.
My recollections are that we had to go in at Union Island, east side, and walk in to the little
airport to clear Customs. They really ding you on holidays by the way. Since Union is almost the next port, you might as well accept clearing customs, coming and going. Nice place for ice cream on the way to the
airport.
Actually, from there, the Tobago keys are close, and Bequia is doable too. Can you take two weeks?
Maybe you can get the Guide for the area from your charter company and get a better feel for the whole area before you go. More anchorages at the south end might improve a short
vacation in my mind; but if they are not there, you will do more sailing and see wonderous beauty. No real way to lose.