Yes I would choose Martinique. You can sail to Grenada
and back to Le Marin easily in this time period. In November many anchorages
are almost deserted. The Grenadines offer some very nice anchorages and good snorkeling.
Provision well in Martinique especially wine and bottled water
as it is much cheaper and much easier there at the Leader Price
supermarket which has a dinghy dock
. There is limited provisioning
in the Grenadines. There are good supermarkets in Grenada
but they are not close by.
should not be a problem. Have a great cruise!