Caribbean Customs & Immigration for Caribbean Cruising

A note on your Seastead Design: The trimaran/SWATH hybrid design you are building is incredibly innovative! The NACA 0030 foil legs, RIM drives, integrated stabilizing aircraft wings, and shielded HARMO dinghy setup sound like a brilliant approach to comfortable sea-keeping and low drag.

From a customs and immigration perspective, your top priority will be ensuring this experimental vessel has standard Flag State Registration (e.g., US Coast Guard documentation, Polish registry, standard state registration). As long as you have official ship's papers clearly stating your vessel's length, beam, draft, and registry, island authorities will treat you as a standard private leisure yacht. Because your vessel looks unique, expect customs officers to be very curious, which often leads to friendly, albeit slightly longer, conversations!

1. Time Required for Online Services (SailClear, etc.)

The Caribbean has heavily digitized over the last decade. SailClear.com is currently the dominant system used by the vast majority of Caribbean nations (eSeaClear has largely been phased out or absorbed). The Bahamas uses their own portal called Click2Clear.

Initial Setup (Account Creation): Taking the time to input your boat's registration data, engine details, dimensions, and the passport/health data for you and your partner takes about 30 to 45 minutes at home before your trip.
Subsequent Clearances: Once your data is saved in SailClear, creating a new "Notice of Arrival" or "Notice of Departure" for the next island takes only 5 to 10 minutes.
System Processing Time: The processing on the website is instantaneous. You system generates an ID number (or QR code) immediately. However, this is just an advance notification. You are not legally cleared in until an official reviews your notification in person.

2. Do You Still Have to Go in Person?

Yes, absolutely.

In the Caribbean, using online portals does not exempt you from visiting the customs and immigration office. The typical protocol is:

Submit your SailClear arrival notification before arriving or drop anchor and use your boat's Wi-Fi/Starlink.
Raise the solid yellow "Q" (Quarantine) flag on your right-side halyard.
No one except the Captain is legally allowed to step ashore.
The Captain takes the dinghy to the Port of Entry, goes to the Custom & Immigration office with physical passports, ship's registry, and the SailClear ID number.
The officer pulls up your digital file, physically stamps your passports, issues your cruising permit, and collects fees.
Return to the seastead, lower the Q flag, and raise the courtesy flag of the host nation. Now the crew can go ashore.

3. Costs to Clear In & Cruising Fees

Costs vary wildly depending on the island nation's colonial history and policies.

Island Nation / Territory	Typical Clearance Cost	Cruising Fees & Notes
French Islands (Martinique, Guadeloupe, St. Martin)	$2 - $5 USD (€2 - €5)	No cruising fees. Extremely fast. You clear via public computers located in marinas or cafes.
English-Speaking Islands (Antigua, St. Lucia, SVG, Grenada)	$20 - $60 USD	Cruising permits often cost an additional $10 to $50 per month depending on vessel length. National park anchoring fees may apply.
The Bahamas	$150 - $300 USD (flat rate)	This includes the clearance, cruising permit, and a fishing license for 3 to 12 months.

4. Paying Fees Online

Can you pay online? Generally, No, with a few exceptions.

In the Bahamas (Click2Clear), you can pay your flat $150-$300 fee online via credit card before you even arrive.
In the rest of the Caribbean (SailClear nations), you still pay in person. Some major ports have credit card machines, but they frequently go down. You should always carry cash (USD is universally accepted for fees, though they may give change in Eastern Caribbean Dollars - XCD).

5. The Overall Trend: Faster or Slower?

The paperwork processing is generally getting faster and much more streamlined.

Ten years ago, you had to fill out 4 to 6 physical carbon-copy pages by hand at every single island, repeatedly writing your passport numbers, engine serial numbers, and boat dimensions. Today, advance-passenger-information systems like SailClear have eliminated the hand-cramping paperwork.

However, the bureaucracy has not disappeared. You still are operating on "island time." If you arrive at an office just as a commercial ferry has landed, or when the customs officer is on their lunch break, your 5-minute process could take two hours. Because of the unique design of your seastead, you might also have officials who simply want to chat about your vessel, which is a great way to make friends but might slow down your clearance processing!

Pro-Tips for Seasteaders:

Have a neatly organized binder with your seastead's Registration, Insurance, Crew Passports, and a printed out specs-sheet showing a picture of the vessel.
Because your vessel sits on FOILS, clearly define your "Draft" in standard terms to assure port authorities you aren't going to hit reef ecosystems when approaching anchorages.
Ensure you have a good system to get ashore. The setup with your shielded 14-foot dinghy and HARMO outboard sounds perfect for making quick, dry trips to the customs dock.