Port Royal Sound is a body of water located along the coast of South Carolina, bordered by Hilton Head Island to the south and Parris Island to the north. Here are some facts about Port Royal Sound and its surrounding area:

1. Port Royal Sound is the second-largest natural sound on the East Coast of the United States, after Chesapeake Bay.

2. The sound is approximately 15 miles long and 7 miles wide, with a depth of up to 40 feet.

3. The area around Port Royal Sound is home to a diverse array of marine life, including dolphins, sea turtles, and various species of fish and shellfish.

4. The sound was named after the town of Port Royal, which was established by French explorer Jean Ribault in 1562.

5. During the American Civil War, Port Royal Sound was an important naval base for the Union Army, and the nearby town of Beaufort was occupied by Union forces for much of the war.

6. Hilton Head Island, which is located at the southern end of Port Royal Sound, is a popular vacation destination known for its beaches, golf courses, and wildlife preserves.

7. The area around Port Royal Sound is also home to several historic sites, including the ruins of a 16th-century Spanish fort and the Penn Center, which was one of the first schools for freed slaves in the United States.

8. In recent years, there has been concern about the impact of development and pollution on the health of Port Royal Sound and its ecosystem. Conservation efforts are underway to protect and preserve the sound and its surrounding environment for future generations.