callisto - using the French computer system you cannot clear out of St. Martin for St. Barths. This is because the drop-down box for the destination
does not contain St. Barths; the first time I tried to do this I was at the Capitainerie (the one on the inside at Marigot) and asked if there was something I was doing wrong and they laughed and told me that one cannot; but that I would need to clear in to St. Barths when I arrive there. When returning from St. Barths to St. Martin one does need to clear out of St. Barths and clear back into St. Martin.
I've done this trip a good 10 times using this method. Unfortunately, the St. Barths clearance system requires that the password has a mix of upper and lowercase and at least one special character and at least one digit. I forgot my code once and then it became difficult, it took me about 45 minutes to get the port captain
to reassign my boat another password... but it is true that the system is fast when it works.
To the main topic - I've cleared into/out of Antigua
3 times in the past 2 months and the new eSeaClear system is truly fast. I need less than a minute to login and click on the windows for a clearance, then write down my confirmation number and present it to the immigration officer, who then prints out the 8 pages for me to date and sign and thus immensely speeds up the clearance process.