The highlight of the trip is the Tobago Cays - so as others have said - skip Canouan and spend 2 nights at the Cays.
Last year we sailed from Grenada - up to the Cays and back. On the way back we left the Cays, cleared out of the Grenadines in Clifton and then spent the night at PSV. Long sail down the east coast of Grenada to Prickly Bay and clear in to Grenada. Its an easy hop to St George the next morning.

We are off tomorrow for a one way charter St Lucia to Grenada. I'll try and post a trip report.

Bob