In reply to AlanLittle:
A similar thing happened to me a few years ago. I opted for the evening ferry although some quite a few people opted to catch an early morning ferry. We all made it to the flights. I guess it comes down to how risk adverse you are!
I can't remember the name of the places I've stayed in Mastihari. A cheap one I stayed in on the edge of town had an impressive number of mosquitos...
For those debating the pros/cons of catching the last ferry. I've missed the last one twice now... French air traffic control strikes, travelling late in the season (my own fault for not getting hold of a timetable) and the other time I've heard people have issues with is travelling over Easter weekend.