Are there any customs restrictions I should know about?
Customs restriction in Curaçao are similar to just about everwhere else in the world. Prescription drugs, particularly if they contain narcotics, should be clearly marked. Unlike in the Netherlands, possession of even the smallest amount of marijuana or other illegal drugs is a serious offense.
If you are traveling with expensive jewelry, you may want to bring a present proof of prior possession, such as a receipt of purchase, bill of sale, insurance policy, or jeweler’s appraisal. You may take foreign-made items bearing serial numbers (e.g. cameras, watches, tape recorders, gifts and folders for a convention) to Customs Offices for registration before leaving the US.
Besides articles for personal use, non-residents over 18 years of age are allowed one liter of liquor, 200 cigarettes, 25 cigars, and 125 grams of tobacco. You would have to declare any items over the stated quantities. Additionally, if you wish to carry over $10,000 with you, you will have to declare it.
On the website douane.cw you can read all the details. At the time of writing, the website is only available in Dutch.
Please be aware that you are not allowed to bring corals or conch shells with you when you leave Curaçao.