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The boat ramp named Highway 17 3930, Yulee is located in Nassau County, Florida. It is a public boat ramp that provides access to the St. Marys River.

According to the Florida Fish and Wildlife Conservation Commission, the Highway 17 3930 boat ramp is a single lane concrete ramp, which is approximately 14 feet wide. It also has a courtesy dock that is attached to the ramp.

The St. Marys River is a tidal river that flows into the Atlantic Ocean. It forms part of the border between Georgia and Florida and is a popular destination for anglers and boaters. The river is known for its beautiful scenery and abundant wildlife.

As for the kind of craft that are permitted on the water, the Florida Fish and Wildlife Conservation Commission states that all types of recreational vessels, including powerboats, sailboats, kayaks, and canoes, are permitted on the St. Marys River. However, users are advised to check local regulations and restrictions before launching their vessels.

In summary, the Highway 17 3930 boat ramp is a public single lane concrete ramp, approximately 14 feet wide, with a courtesy dock. It services the St. Marys River and all types of recreational vessels are permitted on the water.