Here's what a review had to say about the marina in Active Captain
Great place to stay. Custom clearance is easy, use computer at the office (no charge to ck in to Guadeloupe). The transient dock is next to the marina office, stern to docking with a forward line to a buoy (they will come out in a dinghy and help you buoy line and then the aft lines) Make sure you have a long bow line (200%u2019 or more). Duty free fuel. Water, electric ( 50 and 60 cycle) 220/110. Some 380volt 150 amp if you need it. Restaurants, shops, ATM etc all within a short walk. Off season less than $1.00/foot.
We didn't stay in the marina (anchored out across the channel), so I can't offer first hand info. Clearing in at the marina was easy.