Diamond Rock (Rocher du Diamant) is an uninhabited basalt island located off the coast of Martinique, offering a unique historical and natural attraction. The rock, once commissioned as a British warship, provides excellent diving and snorkeling opportunities in the surrounding waters, renowned for their rich marine life and coral formations. Access is typically by boat, and conditions can vary depending on the season, with calmer seas generally occurring during the dry season (December to May). Solo visits are possible by renting a boat, but guided tours are recommended for safety and to fully appreciate the site's history and marine environment. Snorkeling tours range from €30-€60 per person. A typical visit, including boat travel and snorkeling, may last approximately 2-4 hours. Accessibility is limited to the sea, and there are no facilities on the rock itself.