The Harbor Island Ferry Terminal in Florida is not actually a boat ramp, but rather a ferry terminal that provides transportation services to Harbor Island. The terminal is located at latitude 30.37265968 and longitude -86.1149292, and it is situated on the Choctawhatchee Bay in the city of Destin, Florida.

The ferry terminal is managed by the Okaloosa County Transit Authority, and it offers daily ferry services to and from Harbor Island. The ferries are capable of carrying passengers, bicycles, and small vehicles, but larger watercraft are not permitted on the waterway.

As this is not a boat ramp, it is difficult to provide information on its width or the types of craft that are permitted to use it. However, based on the ferry services offered, it is safe to assume that only small watercraft such as kayaks or canoes are permitted on the waterway.

In summary, the Harbor Island Ferry Terminal in Florida is a ferry terminal that provides transportation services to Harbor Island. It is located on the Choctawhatchee Bay in Destin, Florida, and only small watercraft are permitted on the waterway.