There are several species of sea turtles that can be found in the waters around Hilton Head Island, South Carolina. Here are the most common ones:

Loggerhead sea turtle (Caretta caretta): The loggerhead sea turtle is the most common species of sea turtle found around Hilton Head Island. They are named for their large heads and powerful jaws, which are used to crush hard-shelled prey such as crabs and clams.

Green sea turtle (Chelonia mydas): The green sea turtle is less common than the loggerhead around Hilton Head Island, but they are still sometimes spotted in the area. They are named for their greenish-colored fat and flesh and are herbivorous, feeding mainly on seagrasses.

Kemp's ridley sea turtle (Lepidochelys kempii): The Kemp's ridley sea turtle is one of the smallest sea turtles, and the most endangered species. They are rarely seen around Hilton Head Island, but there have been occasional sightings.

Leatherback sea turtle (Dermochelys coriacea): The leatherback sea turtle is the largest of all sea turtles and can grow up to 6 feet long. They are not commonly found around Hilton Head Island, but they have been spotted in the area.

Hawksbill sea turtle (Eretmochelys imbricata): The hawksbill sea turtle is an endangered species and is named for its hooked beak, which it uses to feed on sponges. They are rare in the waters around Hilton Head Island, but they have been seen on occasion.

All sea turtles are protected by law, and it is illegal to harm or disturb them. If you encounter a sea turtle on Hilton Head Island, it is important to keep your distance and observe them from a safe distance.