St. John Plantation is a historic site located in the U.S. Virgin Islands, specifically on the island of St. John. It was established in the 18th century and is known for its sugar cane production, which was a significant industry during that time. The plantation features well-preserved ruins, showcasing the architecture and agricultural practices of the era. Today, St. John Plantation is part of the Virgin Islands National Park, which protects its natural beauty and historical significance. Visitors can explore the plantation's remnants, including sugar mills and slave quarters, while learning about the island's rich cultural heritage and the impact of the sugar industry on the Caribbean.