Duke Kahanamoku Beach in Oahu, Hawaii ranked first.

Duke Kahanamoku Beach in Oahu, Hawaii ranked first.

Barefoot Beach is located in Southwest Florida, the waves here are not too strong and the water is not too deep, suitable for a family vacation.

Barefoot Beach is located in Southwest Florida, the waves here are not too strong and the water is not too deep, suitable for a family vacation.

St George Island State Park is famous for its smooth, soft white sand beaches and clear blue sea water, which is the pride of Florida.

St George Island State Park is famous for its smooth, soft white sand beaches and clear blue sea water, which is the pride of Florida.

Waimanalo Bay State Park located in Oahu, Hawaii is highly rated for its safety when swimming, suitable for families with young children.

Waimanalo Bay State Park located in Oahu, Hawaii is highly rated for its safety when swimming, suitable for families with young children.

The crescent-shaped Hamoa Beach is one of the most famous beaches in Maui, Hawaii.

The crescent-shaped Hamoa Beach is one of the most famous beaches in Maui, Hawaii.

Cape Hatteras in the Outer Banks, North Carolina ranked sixth on the list.

Cape Hatteras in the Outer Banks, North Carolina ranked sixth on the list.

Cape Florida State Park is located on the southern tip of Key Biscayne, with emerald green water that is suitable for swimming.

Cape Florida State Park is located on the southern tip of Key Biscayne, with emerald green water that is suitable for swimming.

Coast Guard Beach in Cape Cod, Massachusetts is considered more beautiful than a picture with clear blue water and gentle waves.

Coast Guard Beach in Cape Cod, Massachusetts is considered more beautiful than a picture with clear blue water and gentle waves.

Beachwalker Park, located at the southern end of Kiawah Island, South Carolina, is an ideal place for water sports and a source of fresh, cheap seafood.

Beachwalker Park, located at the southern end of Kiawah Island, South Carolina, is an ideal place for water sports and a source of fresh, cheap seafood.

Number 10 on the list is Delnor-Wiggins Pass State Park in Naples, Florida.

Number 10 on the list is Delnor-Wiggins Pass State Park in Naples, Florida.

Leatherman is a professor and director of the Coastal Research Laboratory at Florida International University.

Anh Minh Photo: Foxnews

Readers are invited to send articles and questions here or to dulich@vnexpress.net