Get the forms when you pay for the ferry.

Declare the value of the food you are importing on the back of the form.

Departure tax is paid at the time of departure.

Warren S/V Scuba Doo
Lagoon 50 (winner of best crewed yacht under 55 feet at the St. Thomas crewed yacht boat show).

https://www.cyabrochure.com/ebn/2307/pdyrX/6642/4///