Well you ll have to sensationalize it - maybe your the only business on the Island that offers this, or you have a story worth telling. You ll have to offer the Media (television or Newspapers) something to get them there - maybe some free samples? You need an angle - see a public relations firm that you can work with.
You need to contact a good conference agency who can help you free of charge. They will advise you of best venues and negoitate rates on your behalf .They wil have alot more experience and recommend suppliers and trade secrets that will help you.THEY PROVIDE THIS SERVICE FREE OF CHARGE.At the same time you will save money and have the confidence that things will run smoothly on the day.Contact the on the source`s email below and they will enusre your event is a success.
Always best to make it an event. Think about tying it into a charity or community cause. Are there businesses next door or on the same street that have the same customer base? Then, collaborate with them.Is there a Chamber of Commerce in the area? Join it, then invite the membership to participate. If your Chamber is any good, they should have the press connections to help you make the proper contacts.And, serve food and beverages. Nothing gets people to show up like food.Good Luck!