There are several great seafood markets around Hilton Head Island, South Carolina, where you can find fresh and delicious seafood:

1. Barnacle Bill's Seafood Market: Located on the north end of the island, Barnacle Bill's is a family-owned market that has been in business since 1981. They offer a wide selection of fresh seafood, including shrimp, oysters, clams, crab, and a variety of finfish.

2. The Oyster Factory Seafood Market: The Oyster Factory is located on the mainland, just off Hilton Head Island. They specialize in local seafood, including shrimp, oysters, crab, and fish, and offer a variety of prepared seafood dishes as well.

3. The Fresh Market: The Fresh Market is a chain of grocery stores that has a location on Hilton Head Island. They offer a great selection of fresh seafood, including shrimp, crab, lobster, and various types of fish.

4. The Island Fudge Shoppe & Eatery: While not a traditional seafood market, the Island Fudge Shoppe & Eatery offers a variety of fresh seafood, including shrimp, crab, and fish. They also offer a variety of prepared seafood dishes, as well as homemade fudge and other sweet treats.

5. The Sea Pines Beach Club Market: Located at the Sea Pines Beach Club, this market offers a variety of fresh seafood, including shrimp, crab, and fish. They also offer a selection of prepared seafood dishes, as well as other grocery items and souvenirs.

These are just a few of the great seafood markets in the area. Be sure to check out reviews and ask locals for their recommendations to find the best seafood options during your visit to Hilton Head Island.