It seems there use to be mail boat service from Bequia to Mayreau. Now, It sounds like the mail boats pass Bequia and go strait to the lower Grenadine islands. We were going to go to Bequia first then to Mayreau. Now we may just visit one or the other as we do not want to ferry back to St. Vincent then fly or ferry to Union island. We only have a few weeks and if we had a month it would be ok. thanks!